A particle's acceleration is described by the function ax =(10 −t)m/s2, where t is in s. Its initial conditions are x0 = 260 m and v0x =0m/s at t =0s.
At what time is the velocity again zero? What is the particle's position at that time?

Answers

Answer 1

At t = 20s, the velocity is zero again, and the particle's position is approximately 133.33 m.

To find the time when the velocity is zero again, we first need to determine the velocity function by integrating the acceleration function:

a_x = (10 - t) m/s²

Integrating with respect to time (t), we get:

v_x(t) = ∫(10 - t) dt = 10t - (1/2)t² + C

Given the initial condition v0x = 0 m/s at t = 0s, we can find C:

0 = 10(0) - (1/2)(0)² + C
C = 0

So, v_x(t) = 10t - (1/2)t²

Now, we need to find the time (t) when the velocity is zero again:

0 = 10t - (1/2)t²
0 = t(10 - (1/2)t)

This equation has two solutions: t = 0s (initial time) and t = 20s. We're interested in the second solution (t = 20s).

To find the particle's position at t = 20s, we integrate the velocity function:

x(t) = ∫(10t - (1/2)t²) dt = 5t² - (1/6)t³ + D

Using the initial condition x0 = 260m at t = 0s, we find D:

260 = 5(0)² - (1/6)(0)³ + D
D = 260

So, x(t) = 5t² - (1/6)t³ + 260

Now, we find the position at t = 20s:

x(20) = 5(20)² - (1/6)(20)³ + 260 ≈ 133.33 m

You can learn more about velocity at: brainly.com/question/19979064

#SPJ11


Related Questions

A firm current ratio is 1. 0 and its quick ratio is 1. 0. If current liabilities are 12300, what are its inventories?

Answers

A firm current ratio is 1. 0 and its quick ratio is 1. 0. If current liabilities are 12300 then its inventories will be 12300

Inventory is the accounting of items, component parts and raw materials that a company either uses in production or sells

The quick and current ratios are liquidity ratios that help investors and analysts gauge a company's ability to meet its short-term obligations. The current ratio divides current assets by current liabilities. The quick ratio only considers highly-liquid assets or cash equivalents as part of current assets.

current ratio = current assets / current liabilities

current assets = current ratio  * current liabilities

                        = 1 * 12300 = 12300

since , inventory is a current asset for accounting purpose , hence inventories will be 12300

To learn more about current ratios

https://brainly.com/question/19579866?referrer=searchResults

#SPJ4

Three charges, qA is +6.0 μC, qB is –5.0 μC, and qc is +6.0 μC, are located at the corners of a square with each side length at 5.0 cm as shown in the diagram. Calculate the electric field at point D.

Answers

The net electric field at point D is determined as 3.95 x 10⁷ N/C.

Electric field at D due to charge A

E = kq/r²

where;

r is the distance between A and Dq is charge A

E(AD) = (9 x 10⁹ x 6 x 10⁻⁶)/(0.05²)

E(AD) = 2.16 x 10⁷ i N/C

Electric field at D due to charge B

E = kq/r²

where;

r is the distance between A and Bq is charge B

r² = 5²  + 5²

r² = 50

r = √50

r = 7.07 cm

E(BD) = (9 x 10⁹ x 5 x 10⁻⁶)/(0.0707²)

E(BD) = 9 x 10⁶ N/C

in x - direction = 9 x 10⁶ N/C x cos(45) = 6.36 x 10⁶ i  N/C

in y - direction = 9 x 10⁶ N/C x sin(45) = 6.36 x 10⁶j  N/C

Electric field at D due to charge C

E = kq/r²

where;

r is the distance between C and Dq is charge C

E(CD) = (9 x 10⁹ x 6 x 10⁻⁶)/(0.05²)

E(CD) = 2.16 x 10⁷ j N/C

Net electric field in x direction

Ei = 2.16 x 10⁷ i N/C  + 6.36 x 10⁶ i  N/C

Ei = 2.796 x 10⁷ i N/C

Net electric field in y direction

Ej = 2.16 x 10⁷ j N/C  + 6.36 x 10⁶j  N/C

Ej = 2.796 x 10⁷ j N/C

Resultant electric field at D

E = √Ei² + Ej²

E = √[(2.796 x 10⁷)² + (2.796 x 10⁷)²]

E = 3.95 x 10⁷ N/C

Thus, the net electric field at point D is determined as 3.95 x 10⁷ N/C.

Learn more about electric field here: https://brainly.com/question/14372859

#SPJ1

A carnival ferris wheel has a 15-m radius and completes five turns about its horizontal axis every minute. What is the acceleration of a passenger at his lowest point during the ride?.

Answers

The acceleration of the person is 4.108 m/s^2.

What is acceleration?

The acceleration is the rate of change in the velocity in a unit of time.

Angular velocity: The change in angular displacement in a unit of time is called angular velocity.

Tangential velocity: The tangential velocity can be defined as the velocity of an object which is perpendicular to the radius in the rotational motion.

The relation between angular velocity ω, tangential velocity v, and radius r from the axis when the radius is perpendicular to the tangential velocity is,

v=ω*r

Given r=15 m, and ω=5 turns/minutes, substitute these values in the above formula.

Note: 1 turn/minute = 2π/60 rad/s.

v=(5 turns/minutes)*15 m

v=(5*2π/60 rad/s)* 15 m

v=7.85 m/s

Since the motion is circular, and the person is at the lowest point of the wheel, so the acceleration due to gravity will have no effect as it is perpendicular to tangential velocity here. The acceleration a for rotational motion is given by,

a=v^2/r

Substitute v=7.85 m/s, and r=15 m in this equation and solve it.

a=(2.094)^2/(15)

a=4.108 m/s^2

Learn more about acceleration here:

https://brainly.com/question/12550364

#SPJ4

Tuning forks with a frequency of 500 to 1000 hz are most commonly used to measure:________

Answers

Tuning forks with a frequency of 500 to 1000 hz are most commonly used to measure: hearing loss

A person is said to have hearing loss if they are not able to hear as well as someone with normal hearing, meaning hearing thresholds of 20 dB or better in both ears. It can be mild, moderate, moderately severe, severe or profound, and can affect one or both ears.

High-pitched tuning fork with frequency of 500 to 1000 hertz (Hz) should be used to estimate hearing loss in range of normal speech (300 to 3000 Hz).

The 512-Hz Rinne tuning fork test could be very effective at detecting conductive hearing losses when performed by an experienced tester and when masking was used . Tuning forks  are used to carry Rinne and Weber tests. These tests provide a quick easy method of determining whether a hearing loss is situated in the middle ear or inner ear

To learn more about hearing loss here

https://brainly.com/question/18548045?referrer=searchResults

#SPJ4

How does head to tail rule helps us to find the resultant of forces ?? Explain with the help of a diagram.

Answers

Head to tail rule helps us to find the resultant of forces because in this rule we join many vectors with each other forming resultant vector.

What is head to tail rule?

The joining of tail of the first vector with the head of the second vector represents the resultant vector whereas the direction of the resultant vector is from the tail of the first vector towards the head of the second.

So we can conclude that Head to tail rule helps us to find the resultant of forces because in this rule we join many vectors with each other forming resultant vector.

Learn more about force here: https://brainly.com/question/12970081

#SPJ1

An air conditioner runs 15 minutes each hour on a hot summer day. It is on a 240 volt circuit and uses 21 amps. Rate is $.10/kWh
How much does it cost to run for one day? Round to the nearest cent. $Answer

Answers

Answer:

Approximately [tex]\$ 3.02[/tex].

Explanation:

Note that the electric rate in this question is in the unit dollar-per-[tex]{\rm kWh}[/tex], where [tex]1\; {\rm kWh}[/tex] is the energy to run an appliance of power [tex]1\; {\rm kW}[/tex] for an hour.

Number of minutes for which the air conditioner is running in that day: [tex]15 \times 24 = 360\; \text{minute}[/tex]. Apply unit conversion and ensure that this time is measured in hours (same as the unit of the electric rate.)

[tex]\begin{aligned} \text{time} &= 360\; \text{minute} \times \frac{1\; \text{hour}}{60\; \text{minute}} = 6\; \text{hour} \end{aligned}[/tex].

The power of this air conditioner is:

[tex]\begin{aligned} \text{power} &= \text{voltage} \times \text{current} \\ &= 240\; {\rm V} \times 21\; {\rm A} \\ &= 5040\; {\rm W} \\ &= 5.04\; {\rm kW} \end{aligned}[/tex].

Thus, the energy that this air conditioner would consume would be:

[tex]\begin{aligned}\text{energy} &= \text{power} \times \text{time} \\ &= 5.04\; {\rm kW} \times 6\; \text{hour} \\ &= 30.24\; {\rm kWh} \end{aligned}[/tex].

At a rate of [tex]0.1[/tex] dollar-per-[tex]{\rm kWh}[/tex], the cost of that much energy would be approximately [tex]3.02[/tex] dollars (rounded to the nearest cent.)

Water falls without splashing at a rate of 0.400 L/s from a height of 2.20 m into a 0.720-kg bucket on a scale. If the bucket is originally empty, what does the scale read 3.60 s after water starts to accumulate in it

Answers

The reading of the scale after 3.6 seconds is 23.79 N.

Velocity of the water

v = √2gh

v = √(2 x 9.8 x 2.2)

v = 6.57 m/s

Rate of change of momentum of the water after impact

mv/t = F = 0.4 x 6.57 = 2.628 N

Weight of the bucket

Wb = 0.72 x 9.8

Wb = 7.056 N

Weight of the accumulated water

Wa = (RT)g

Wa = (0.4 x 3.6) x 9.8

Wa = 14.11 N

Reading of the scale

R = Wa + Wb + F

R = 14.11 N  +  7.056 N  +  2.628 N

R = 23.79 N

Thus, the reading of the scale after 3.6 seconds is 23.79 N.

Learn more about weight here: https://brainly.com/question/2337612

#SPJ1

If the strength of a magnetic field at B is three units the strength of the magnetic field at A is ____?

Answers

If the strength of a magnetic field at B is three units the strength of the magnetic field at A, means that point B has three times more turns as compared to point A.

How strength of the magnetic field should be increased?

We can increase the strength of the magnetic field by increasing the number of turns which increases the strength of the current flow.

So we can conclude that point B has three times more turns as compared to point A.

Learn more about magnetic field here: https://brainly.com/question/14411049

#SPJ1

The end point of a spring oscillates with a period of 2.0 s when a block with mass m is attached to it. When this mass is increased by 2.0 kg, the period is found to be 3.0 s. Find m.

Answers

Answer: The end point of a spring oscillates with a period of 2.0 s when a block with mass m is attached to it. When this mass is increased by 2.0 kg, the period is found to be 3.0 s.  Then the mass m is 0.625kg.

Explanation: To find the answer, we need to know more about the simple harmonic motion.

What is simple harmonic motion?A particle is said to execute SHM, if it moves to and fro about the mean position under the action of restoring force.We have the equation of time period of a SHM as,

                                          [tex]T=2\pi \sqrt{\frac{m}{k} }[/tex]

Where, m is the mass of the body and k is the spring constant.How to solve the problem?Given that,

               [tex]T_1=2s\\m_1=m\\m_2=m+2kg\\T_2=3s[/tex]

We have to find the value of m,

              [tex]T_1=2\pi \sqrt{\frac{m}{k} } \\T_2=2\pi \sqrt{\frac{m+2}{k} } \\\frac{T_1}{T_2} =\sqrt{\frac{m}{m+2} }\\\frac{2}{3} =\sqrt{\frac{m}{m+2} }\\\\[/tex]

               [tex]m=\frac{5}{8} =0.625kg[/tex]

Thus, we can conclude that, the mass m will be 0.625kg.

Learn more about simple harmonic motion here:

https://brainly.com/question/28045110

#SPJ4

15. When you cannot stop safely at a yellow traffic light before entering an intersection, ______________. A. stop in the intersection as soon as the light turns red B. accelerate so you'd cross the intersection before the light turns red C. enter the intersection carefully and continue across

Answers

Answer:  When you cannot stop safely at a yellow traffic light before entering an intersection, enter the intersection carefully and continue across.

Explanation: To find the correct answer, we need to know more about the traffic signal rules.

What is the traffic signal rules?Red light- Indicator for the motorists to stop.Green-Signal for safety and word GO.Yellow- This signal let you know that the red signal is about to be displayed.when it's turned on, you can start slowing down to come to a stop in anticipation of red light.when we cannot stop safely at a yellow traffic light before entering an intersection, enter the intersection carefully and continue across.

Thus, we can conclude that, the option C is correct.

Learn more about the traffic signal rules here:

https://brainly.com/question/28044804

#SPJ4

What minimum volume must the slab have for a 75.0 kgkg woman to be able to stand on it without getting her feet wet

Answers

V = 0.9375 m3 is minimum volume .

What is density ?We use the word "density" to indicate how much space (or "volume") an object or substance occupies in relation to the amount of matter contained therein (its mass). Density can also be defined as the quantity of mass per unit of volume. A dense object is one that is both hefty and small.

Given,

            1000 kg/m3 = density of water

             920 kg/m3 = density of ice

BF = Woman Weight + Slab Weight

Pvg = 75 + Pvg

V = 75 kg / (1000 - 920)

V = 75 / 80

V = 0.9375 m3

Therefore, V = 0.9375 m3 is minimum volume .

Learn more about density

brainly.com/question/952755

#SPJ4

A small mailbag is released from a helicopter that is descending steadily at 1.53 m/s. (a) After 4.00 s, what is the speed of the mailbag? v = m/s (b) How far is it below the helicopter? d = m (c) What are your answers to parts (a) and (b) if the helicopter is rising steadily at 1.53 m/s?

Answers

Answer: A small mailbag is released from a helicopter that is descending steadily at 1.53 m/s. Then,

a) after 4s, the speed of the mailbox will be, 40.73m/s downwards.

b)78.4m downwards.

c) v=37.67m/s downward. and d=78.4m downward.

Explanation: To find the answer, we need to know more about the equations of uniformly accelerated motion.

What are the equations of uniformly accelerated motion?The equations of uniformly accelerated motion under gravity are,

                                [tex]v=u+at\\S=ut+\frac{1}{2}at^2\\ v^2-u^2=2aS\\S=\frac{v+u}{2}t[/tex]

How to solve the problem?a) speed of the mailbag after 4s,

            [tex]v=u+gt=-1.53-(9.8*4)=-40.73 m/s^2[/tex]

b) How far it is below the helicopter,

           [tex]d_1=ut+\frac{1}{2}gt^2=(-1.53*4)+\frac{-9.8*16}{2} =-84.52 m\\d_2=vt=-40.73*4=-162.92 m\\d=-162,92+84.52=-78.4m[/tex]

c) If the helicopter is rising steadily, then v and d will be,

                 [tex]v=u+gt=1.53-(9.8*4)=-37.67 m/s[/tex]

                 [tex]d_1=ut+\frac{1}{2}gt^2=(1.53*4)+\frac{-9.8*16}{2} =-72.28 m\\ d_2=vt=-37.67*4=-150.68 m\\d=-150.68+72.28=-78.4 m[/tex]

Thus, we can conclude that, the answers to the question are, a) after 4s, the speed of the mailbox will be, 40.73m/s downwards.

b)78.4m downwards.

c) v=37.67m/s downward. and d=78.4m downward.

Learn more about the equation of uniformly accelerated motion here:

https://brainly.com/question/28044927

#SPJ4

When starting a foot race, a 64 kilogram sprinter exerts an average force of 693 newtons backward on the ground for 0.59 seconds. how far does he travel in meters during this time?

Answers

The distance traveled by the sprinter in meters is determined as 1.88 m.

Acceleration of the sprinter

The acceleration of the sprinter is the rate of change of velocity of the sprinter with time.

The acceleration of the sprinter is calculated as follows;

Apply Newton's second law of motion as follows;

F = ma

a = F/m

where;

F is the applied force by the sprinterm is mass of the sprintera is acceleration of the sprinter

a = 693 N / 64 kg

a = 10.83 m/s²

Distance traveled by the sprinter

The distance traveled by the sprinter is calculated as follows;

s = ut + ¹/₂at²

where;

u is initial velocity = 0

s = ¹/₂at²

where;

t is time of motiona is acceleration

s = (0.5)(10.83)(0.59²)

s = 1.88 m

Thus, the distance traveled by the sprinter in meters is determined as 1.88 m.

Learn more about distance here: https://brainly.com/question/2854969

#SPJ1

Chicago, il is currently in the e climate zone.
a) true
b) false

Answers

Answer:

false

Explanation:

The density of mobile electrons in copper metal is 8.4 1028 m-3. Suppose that i = 9.0 1018 electrons/s are drifting through a copper wire. (This is a typical value for a simple circuit.) The diameter of the wire is 3.6 mm. In this case, about how many minutes would it take for a single electron in the electron sea to drift from one end to the other end of a wire 35 cm long? minutes

Answers

It would take 531 minutes for a single electron in the electron sea to drift from one end to the other end of a wire 35 cm long.

What is electric current?

A rate of electric charge flowing past a place or region is called an electric current. A net passage of electric charge through a region creates an electric current.

Here,

ρ is the density of electrons = 8.4×10²⁸ kg/m³

i is the electric current =9.08×10¹⁸ electrons/sec

d is the diameter of the wire =3.6 mm = 0.0036 m

r is radius, r = d/2, r = 1.8 mm = 0.0018 m

l is the length of wire = 34 cm = 0.34 m

v is The volume of the wire

We know that Volume:

V = π r^2* l

V = (3.14* 0.0018^2) 0.34

V = 3.45* 10^-6 m³

Now,

no of electrons= ρ × V

n =  8.4×10²⁸ * 3.45* 10^-6

n = 2.898 * 10^ 23

The time required for the drifting electron is equal to the ratio of the number of electrons to the electric current flows.

T = n/i

T = 2.898 * 10^ 23 / 9.08×10¹⁸

T = 0.3191 * 10^5 s

T = 531 minutes

Hence,

It would take 531 minutes for a single electron in the electron sea to drift from one end to the other end of a wire 35 cm long.

Learn more about electric charge here:

https://brainly.com/question/15180042

#SPJ4

One of the primary advantages of CCDs over photographic plates is the former's high efficiency in detecting light.

Answers

True

What are the advantages of CCDs over photographic plates?

In place of photographic plates or films, charge coupled devices, or CCDs, are sensitive photon detectors that can be employed in telescopes to create images. CCDs were created in the late 1960s and are now found in various devices, including digital cameras and photocopiers.

CCDs are more light-efficient, catch a greater proportion of incoming photons, can store and transfer digital data, and don't require development like film does. They respond linearly and capture up to 80% of the light that strikes them.

I understand the question you are looking for is this:

One of the primary advantages of CCDs over photographic plates is the former's high efficiency in detecting light. True or false.

Learn more about CCDs here:

https://brainly.com/question/3348477

#SPJ4

The photographer realizes that with the lens she is currently using, she can't fit the entire landscape she is trying to photograph into her picture. Should she switch to a lens with a longer or shorter focal length

Answers

She should use shorter focal length to fit the entire landscape which she is trying to photograph into her picture.

What is focal length?

The focal length is a measure of how strongly the system converges or diverges light.

A positive focal length indicates that a system converges light, while a negative focal length indicates that the system diverges light.

For a standard rectilinear lens,

FOV = 2 arctan (x/2f)

FOV ∝ 1 / f

where x is the diagonal of the film.

Focal length (f) and field of view (FOV) of a lens are inversely proportional.

From the equation we can say that,

A shorter focal length gives you a wide angle of view which allows more view to fit in the frame.

Hence,

She should use shorter focal length to fit the entire landscape which she is trying to photograph into her picture.

Learn more about focal length here

https://brainly.com/question/13885819

#SPJ4

A satellite with a mass of 110 kg and a kinetic energy of 3.0 ´ 109 J must be moving at a speed of

Answers

Answer: A satellite with a mass of 110 kg and a kinetic energy of 3.08×10^9 J must be moving at a speed of 7483 m/s.

Explanation: To find the answer we need to know about the kinetic energy of a body.

How to solve the problem the equation of kinetic energy?We have the expression for kinetic energy of a body as,

                                   [tex]KE=\frac{1}{2}mv^2[/tex]

Given that,

                                   [tex]m=110kg\\KE=3.08*10^9J\\[/tex]

We have to find the speed of the satellite,

                               [tex]v=\sqrt{\frac{2KE}{m} } =\sqrt{\frac{2*3.08*10^9}{110} } =7.483*10^3 m/s[/tex]

Thus, we can conclude that, the velocity of the satellite will be 7438m/s.

Learn more about Kinetic energy here:

https://brainly.com/question/28105739

#SPJ4

In order to move at a speed of 7483 m/s, a satellite with a mass of 110 kg and a kinetic energy of 3.08× 10^-9 J must be travelling.

Understanding a body's kinetic energy is necessary in order to determine the solution.

How can the kinetic energy equation be solved?The phrase "kinetic energy of a body" might be used as,

                         [tex]KE=\frac{1}{2}mV^2[/tex]

Given that,

               [tex]m=110kg\\KE=3.08*10^9J[/tex]

We must determine the satellite's speed.

                        [tex]V=\sqrt{\frac{2KE}{m} }=7.48km/s[/tex]

Thus, we can infer that the satellite will move at a speed of 7438 m/s.

Learn more about the kinetic energy here:

https://brainly.com/question/28105739

#SPJ1

In addition to ozone, what four other greenhouse gases or groups of greenhouse gases are included in nearly all the climate models?

Answers

In addition to ozone, the four other greenhouse gases or groups of greenhouse gases are included in nearly all the climate models are Carbon dioxide, water vapor, and methane, nitrous oxide.

Carbon dioxide, absorbs energy at a variety of wavelengths, a range that overlaps with that of infrared energy. As CO2 soaks up this infrared energy, it vibrates and re-emits the infrared energy back in all directions. About half of that energy goes out into space, and about half of it returns to Earth as heat, contributing to the ‘greenhouse effect.’

As methane is emitted into the air, it reacts in several ways. It reacts and  after oxidization methane forms water vapor and carbon dioxide. So, not only does methane contribute to global warming directly but also, indirectly through the release of carbon dioxide.

Nitrous oxide enhances the greenhouse effect by capturing reradiated infrared radiation from the Earth’s surface and subsequently warming the troposphere . It is chemically inert in the troposphere and stays in the troposphere for about 120 years before moving into the stratosphere where it ultimately leads to destruction of stratospheric ozone.

Water vapor does absorb longwave radiation and radiates it back to the surface, thus contributing to warming.

To learn more about greenhouse gases here

https://brainly.com/question/14131369?referrer=searchResults

#SPJ4

What happens when the
atoms in a magnetic material
are lined up?
A. It is magnetic.
B. It is not magnetic.
C. The arrangement of the atoms does not
affect the magnetism of the material.

Answers

option (a)i.e, It is magnetic when the atoms in a magnetic material are lined up.

Magnetic fields can be represented visually using magnetic field lines. In each case, they specify the direction of the magnetic force acting on a north monopole. The lines' density reveals how large the field is. For example, the magnetic field is more intense and dense near a magnet's poles.

The spin and orbital momentum of an atom's electrons produce magnetism. The term "magnetic anisotropy" refers to how an atom's magnetic characteristics change depending on how the orbits of its electrons are oriented in relation to the composition of a substance. Additionally, it gives magnetization directionality and stability

Each atom creates a tiny magnetic field because the orbiting electrons are tiny moving charges. The direction or orientation of these magnetic fields is referred to as the atom's magnetic moment. In a nutshell, an object's atoms behave like a number of small magnets.

To know more about Magnetic fields refer to:  https://brainly.com/question/23096032

#SPJ1

he most accurate place to conduct a weight check is: Select one: At the surface, at the beginning of the dive. At the deepest point reached during the dive. At safety-stop depth, at the end of the dive. None of the above.

Answers

The most accurate place to conduct a weight check is at safety-stop death, at the end of the dive.

Why is a weight check important in diving?

A weight check before diving helps an individual decide on the right amount of weight needed for each scuba dive.

To do a weight check one must float upright on the surface, head placed above water. The individual then needs to ­release some air from their Buoyancy compensator as they take a deep breath from their regulator.

Now if the individual sinks rapidly below the ­surface, they are overweight and if their head stays above the water surface, then they are underweight. Thus, when an individual sinks up to the mask ­level, then the weight is just right.

Therefore, the most accurate place to conduct a weight check is at safety-stop depth, at the end of the dive.

Learn more about diving here:

https://brainly.com/question/24418935

#SPJ4

There are many muscles in our body. our body uses muscles to move parts of our body. a part that needs to move a lot will have a higher number of muscles. which of the following parts is most likely to have the most muscles? a. ear lobe b. stomach c. teeth d. brain

Answers

Option b) Stomach is most likely to have the most muscles.

There are five main muscles in stomach pyramidalis, rectus abdominus, external obliques, internal obliques, and transversus abdominis.

Muscles circulate frame parts by contracting after which relaxing. muscular tissues can pull bones, however, they cannot push them to return to their unique role. so they paintings in pairs of flexors and extensors. The flexor contracts to bend a limb at a joint.

The muscle groups that circulate our frame elements are called skeletal muscles, and they're a form of striated muscle. We will actively manipulate those with our brains. another sort of striated muscle is those that maintain our hearts pumping, which we are not able to actively control.

Muscles pull at the joints, allowing us to move. a couple of muscular tissues are used for any sort of motion of a bone. Although we are sitting flawlessly nevertheless, muscle tissues at some point in the frame are constantly shifting.

Learn more about Muscles here: https://brainly.com/question/1283837

#SPJ1

what was kobes passion for sports

Answers

To not die in a helicopter crash

A gymnast initially has a moment of inertia of 6 kgm^2 and rotation rate of 12rad/s. His rotation rate slows to 8rad/s because he extends his arms and legs. What is his new moment of inertia

Answers

The new moment of inertia of the gymnast is 9kgm^2.

To find the answer, we need to know about the conservation of angular momentum.

What's conservation of angular momentum?It says the angular momentum of a rotating body remains conserved until an external torque is applied on it. Angular momentum= moment of inertia × angular velocity = I×wWhat's the final moment of inertia of the gymnast, if his initial moment of inertia, initial angular velocity and final angular velocity are 6 kgm^2, 12rad/s and 8rad/s respectively?Let I₁= 6 kgm^2, w₁= 12rad/s, w₂= 8rad/s and I₂= final angular velocityFrom conservation of angular momentum,

                      I₁×w₁= I₂×w₂

                      I₂= I₁×w₁/w₂

                         = (6×12)/8

                         = 9kgm^2

Thus, we can conclude that the new moment of inertia of the gymnast is 9kgm^2.

Learn more about the moment of inertia here:

brainly.com/question/14460640

#SPJ4

A ball is thrown horizontally from the top of a building 0.10 km high. The ball strikes the ground at a point 78 m horizontally away from and below the point of release. What is the speed of the ball just before it strikes the ground

Answers

Answer:

Error

Explanation:

Speed= Distance / Time

Speed = 0.1

Which type of motorcycle features rear-positioned footrests, high power-to-weight ratio, and a forward leaning ride

Answers

Sport-type motorcycles typically feature a higher than average power-to-weight ratio.

Sport-style motorcycles often have a power-to-weight ratio that is above average. Fuel refers to opening the fuel supply valve, if available. Set the choke and squeeze the clutch lever together is referred known as "choke and clutch." Even though some motorcycles lack a choke, the choke should be ON for a cold engine.

What is scrambler motorcycle?

Scrambler motorbikes, also referred to as dirt bikes, have special features designed for off-road activities and sports. Off-road, to be clear, is any route that isn't paved or that follows a set pattern. Scrambler bicycles feature relatively straightforward designs, long suspensions, and high ground clearance.

Learn more about Scrambler motorbikes

brainly.com/question/24915434

#SPJ4

What is constant in the horizontal direction for a projectile?

Answers

Answer:

initial velocity is the constant in horizontal projectile

A hydraulic system contains 3 pistons. The input piston has an area of 0.625 in2, one of the output pistons ( piston A ) has an unknown area and the other piston ( Output Piston ) has a diameter of 3.75 inches. If system pressure is 1,440 psi, and Piston A is supporting 20,000 lb, what is the area of Piston A

Answers

The area of Piston A is 13.88 in^2

What is a hydraulic system?

The hydraulic system functions by using pressurized fluid.  The power of liquid fuel in hydraulics is significant and as a result, they are commonly used in heavy equipment.

Hydraulic system simply means a mechanical function that operates through the force of liquid pressure.

Here

A hydraulic system contains 3 pistons.

Pressure, P = 1440 psi

for piston A:

Area, A= 0.625 in^2

Force, F = 20,000 lb

We know that,

Force = Pressure x Area

F = P x A

Area ( piston A) = F / P

A = 20,000 / 1440

A = 13.88 in^2

Hence,

The area of Piston A is 13.88 in^2

Learn more about hydraulic system here:

https://brainly.com/question/27961071

#SPJ4

Two boys with masses of 40 kg and 60 kg stand on a horizontal frictionless surface holding the ends of a light 10-m long rod. The boys pull themselves together along the rod. When they meet the 40-kg boy will have moved what distance?.

Answers

when they meet the 40-kg boy will have moved a distance of 6 m.

What is friction force:

Friction is the force that resists motion when the surface of one object comes in contact with the surface of another.

The principle of center mass.

It is the average position of all the parts of the system, weighted according to their masses.

here,

masses of the boys

M=40 kg,

m=60 kg

x1 = 10 m

The displacement of the 40 kg boy is calculated from the principle of center mass.

XM = ( mx1 + Mx2) / ( m + M )

X(40) = (60 x 10 +  40 x 0) / (40 kg + 60 kg)

X(40) = (600)/(100)

X(40) = 6 m

X(60) = (60 x 0 + 40 x 10 m) / (40 kg + 60 kg)

X(60) = (400)/(100)

X(60) = 4 m

Thus,

when they meet the 40-kg boy will have moved a distance of 6 m.

Learn more about center of mass here:

https://brainly.com/question/8662931

#SPJ4

State Newton's second law of motion and establish the relation F = m x a​

Answers

F = ma is the formula of Newton's Second Law of Motion. Newton's Second Law of Motion is described as Force is equal to the rate of change of momentum. For a constant mass, force equals mass duration acceleration.

What is the significance of Newton's second law of motion explain?

Newton's Second Law of Motion F=ma is very significant because it indicates the relationship between forces and motion. It permits you to calculate the acceleration (and therefore velocity and position) of an object with known forces. This is extremely helpful for scientists, engineers, inventors, etc.

Force is directly proportional to Shift in momentum ÷ Time taken.

Therefore : F is directly proportional to m×a. This relation F is directly proportional to m×a can be turned into an equation by placing in a constant k.

To learn more about Newton's Second Law , refer

https://brainly.com/question/25545050

#SPJ9

Other Questions
The box plots display measures from data collected when 20 people were asked about their wait time at a drive-thru restaurant window.A horizontal line starting at 0, with tick marks every one-half unit up to 32. The line is labeled Wait Time In Minutes. The box extends from 10 to 14.5 on the number line. A line in the box is at 12.5. The lines outside the box end at 5 and 20. The graph is titled Fast Chicken.A horizontal line starting at 0, with tick marks every one-half unit up to 32. The line is labeled Wait Time In Minutes. The box extends from 8.5 to 15.5 on the number line. A line in the box is at 12. The lines outside the box end at 3 and 27. The graph is titled Super Fast Food.Which drive-thru is able to estimate their wait time more consistently, and why? Fast Chicken, because it has a smaller IQR Fast Chicken, because it has a smaller range Super Fast Food, because it has a smaller IQR Super Fast Food, because it has a smaller range Determine the disturbance thickness of the boundary layer along the side of the trailer truck at its mid-length z=7.5 ft. if a reaction has happened between a substrate and the soidum iodide in acetone solution what visual cues are you looking for Which of the following best represents a derived demand for labor?! The demand for vegetables by a restaurant specializing in salads The demand for the services of a private tutor by a student The demand for the services of teachers by school districts The demand for dog food by neighborhood dog owners add the appropriate number of hydrogen atoms to the alkynes and give their systematic names. . Add the appropriate number of hydrogen atoms to the alkyne. IUPAC name: Select Draw Rings More Erase C-CE Why did the people of sighet not want to believe moiseh? ***50 POINTSLiterally an answer for any of the questions will help Im so lost what is the most likely geometry of the complex [co(en)3]cl3, where en is the bidentate ligand ethylenediamine h2nch2ch2nh2? For each of the following events, select the type of base-pairing (if any) that mediates it: DNA-DNA, RNA-DNA, RNA-RNA, or no base-pairing involved (none)? ___ pairing of a codon and anticodon ___ addition of a cap to a eukaryotic transcript ___ elongation of a transcript ___ polyadenylation of a transcript ___ rho-independent transcription termination ___ coronavirus genome replication ___ F plasmid replication ___ R-loop formation, in an experiment that demonstrated the existence of introns.A. DNA-RNAB. noneC. DNA-DNA D. RNA-RNA V which of the following is the most likely reason dr. singh conducted a factorial design? group of answer choices A soup can's label wraps around the can, so that it covers the can's entire lateral surface. If the label has an area of 54 square inches and the can has a diameter of 3 inches, approximately what is the height of the can? Use 3 for pi. If a student used 75 m l of a concentrated hydrochloric acid (HCl) stock solution to make 1. 5 L of a 0. 50 M HCl solution, what was the original concentration of the stock solution 25.0 l solution is made of 0.10 m acid and 0.13 m conjugate base. what mass of hno3 (mm = 63.01) in grams can the buffer absorb before one of the components is no longer present? Free radicals in the body form hydroxyl radicals _____ which in turn cause damage to living tissues .? (In X-ray) Consider the reaction. The starting material is a carbonyl bonded to a hydrogen and a tert butyl group. Step 1 is Na B H 4 and step 2 is D 20. Complete the electron-pushing mechanism for the reaction by drawing the necessary organic structures and curved arrows for each step. Make sure to include all nonbonding electron pairs Now that the football season has ended, don't you think our school's athletes deserve a brief _____ before beginning basketball practice? many anxiety responses can be acquired through _________ conditioning and maintained through ________ conditioning. Why does a vegetarian leave a smaller ecological footprint than a person who eats meat? a. Vegetarians need to ingest less chemical energy than omnivores. b. Fewer farm animals are slaughtered for human consumption. c. Vegetarians require less protein to sustain life than do omnivores. d. Eating meat is an inefficient way to utilize autotrophic productivity e. There is an excess of plant biomass in all terrestrial ecosystems. what season is the southern hemisphere experiencing 2(x+4)+2=5x+1 solve for x need help asap