The wheel is composed of a 10-kg hoop stiffened by four thin spokes, each with a mass of 2 kg. A hori- zontal force of 40 N is applied to the wheel initially at rest. Calculate the angular velocity of the wheel after its center has moved 3 m. Friction is sufficient to prevent slipping.

Answers

Answer 1

For a wheel  composed of a 10-kg hoop stiffened by four thin spokes and each with a mass of 2 kg, the angular velocity  is mathematically given as

w=1.165 rad/s

What is the angular velocity of the wheel after its center has moved 3 m.?

Generally, the equation for the  angular velocity  is mathematically given as

[tex]V = \sqrt{(F * r/m)[/tex]

Therefore

[tex]V= \sqrt{(40 x 0.3 / 98.1)[/tex]

V= 0.35 m/s

Where

w=v/r

w= 0.35/0.3

w=1.165 rad/s

In conclusion, the angular velocity is

w=1.165 rad/s

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The Wheel Is Composed Of A 10-kg Hoop Stiffened By Four Thin Spokes, Each With A Mass Of 2 Kg. A Hori-

Related Questions

How does a charge transfer from one object to another?​

Answers

Answer:

Three ways electrons can be transferred are conduction, friction, and polarization. In each case, the total charge remains the same. This is the law of conservation of charge. Conduction occurs when there is direct contact between materials that differ in their ability to give up or accept electrons.

Explanation:

Answer:

Charge transfer by Conduction

Charge transfer by conduction using a negatively charged object.

Charge transfer by conduction using a positively charged object.

Charge transfer by induction using a positively charged object.

Explanation:

A charge of 6. 4 × 10–7 C experiences an electric force of 1. 8 × 10–1 N. What is the electric field strength? 1. 1 × 10–7 N/C 3. 6 × 10–6 N/C 8. 2 × 100 N/C 2. 8 × 105 N/C.

Answers

The electric field strength is defined as the ratio of electric force and charge. The electric field strength will be 2.8 ×10⁵ N/C.

What is electric field strength?

The electric field strength is defined as the ratio of electric force and charge. The field's direction is determined by the direction of the force acting on the positive charge.

A positive charge produces a radially outward electric field, whereas a negative charge produces a radially inward electric field.

The given data in the problem is;

Q is the charge= 6. 4 × 10–7 C

E is the electric force=1. 8 × 10–1 N

The relation between the electrostatic force and the electric field due to a charge is given as:

[tex]\rm F_E=Q E \\\\ \rm E=\frac{F_E}{Q} \\\\ \rm E=\frac{1.8\times 10^{-1}}{6.4\times 10^{-7}} \\\\ \rm E=2. 8 \times 10^5\ N/C.[/tex]

Hence the electric field strength will be 2.8 ×10⁵ N/C.

To learn more about the electric field strength refer to the link;

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2. A motorcycle starts at rest and moves a distance of 350 m. If it has a constant acceleration of 4.55m/s2, what is
its final velocity?

Answers

Answer:

Vf = ≈56.436 m/s

Explanation:

We'll need to use the equation:

Vf^2 = Vi^2 + 2aΔx

Plugging in what we know, we get:

Vf^2 = (0)^2 + 2(4.55)(350)

Finally, some algebra:

Vf^2 = 3185

Vf = ≈56.436

What color of visible light has the highest energy?.

Answers

Violet light has the highest energy

1. A box with a mass of 6 kilograms is pushed with a net force of 10N to
the right on a frictionless surface. Calculate the acceleration of the box. *

Answers

Answer:

[tex]a=1.67\ m/s^2[/tex]

Explanation:

Given that,

Mass of the box, m = 6 kg

The net force acting on the box, F = 10 N

We need to find the acceleration of the box. We know that the force acting on an object is given by :

F = ma

a is the acceleration of the box,

[tex]a=\dfrac{F}{m}\\\\a=\dfrac{10\ N}{6\ kg}\\\\a=1.67\ m/s^2[/tex]

So, the acceleration of the box is [tex]1.67\ m/s^2[/tex].

What’s the answer to this question? Is it C?

Answers

The answer would be C hope this helps:)

Mr. Koskos brought a scooter to DHS so he could zoom around the halls while the building is empty. The scooter can accelerate at a rate of 45 m/s2. If Mr. Koskos started at 13 m/s, how much time did it take for him to shoot up to a final speed of 51 m/s?

Answers

Answer:

51m/s - 13m/s= 38m/s

38m/s÷45m/s²= 0/8

Explanation:

First we bring the difference in speeds to religion because this is the formula

Secondary speed - primary speed ÷ time

[tex] \frac{51 - 13} {45} =0.8[/tex]

Because we do not have a definite time, according to the division formula, we accelerate to get the time

how are electromagnets used in communication{plsssssssssssssssss pu!!! deadline na next week !!!!!}

Answers

Radio works by transmitting and receiving electromagnetic waves. The radio signal is an electronic current moving back and forth very quickly. A transmitter radiates this field outward via an antenna; a receiver then picks up the field and translates it to the sounds heard through the radio

Answer:

radio work by transmitting and receiving electro magnetic waves.

Which item has the least thermal energy? (APEX)
Oh. 5 kg cold water
OB. 5 kgice
O C. 5 lg boiling water
O D. 5 lg hot water just below the boiling point

Answers

Answer:

5 KG of ice would have the lowest thermal energy

Answer:

its A; 5 kg of ice

Explanation:

yurrrr

The sun accounts what percentage of mass in our solar system?.

Answers

Explanation:

The sun lies at the heart of the solar system, where it is by far the largest object. It holds 99.8% of the solar system's mass and is roughly 109 times the diameter of the Earth — about one million Earths could fit inside the sun.

Answer:

99.9%

Explanation: The sun is a major and significant part of our solar system and our daily life so it is 99.9%.

how is moment calculated in different conditions?

Answers

Answer:

The Moment of a force is a measure of its tendency to cause a body to rotate about a specific point or axis. This is different from the tendency for a body to move, or translate, in the direction of the force. In order for a moment to develop, the force must act upon the body in such a manner that the body would begin to twist. This occurs every time a force is applied so that it does not pass through the centroid of the body. A moment is due to a force not having an equal and opposite force directly along it's line of action.

Imagine two people pushing on a door at the doorknob from opposite sides. If both of them are pushing with an equal force then there is a state of equilibrium. If one of them would suddenly jump back from the door, the push of the other person would no longer have any opposition and the door would swing away. The person who was still pushing on the door created a moment.

Explanation:

hope it helps you

How can I get better at Physics?

Answers

Answer:

by paying attention in class, studying and using notes on everything

Explanation:

The Lazarus mission was ___ years ago?

It takes _____ years to get to Saturn from earth.

Answers

Answer:

10 years ago

8 years

Explanation:

At its closest, Saturn is 1.2 billion kilometers away from Earth. So with today's spacecraft technology, you'll need about eight years to make the trip.

The weight of an object can be determined by multiplying the mass of the object by which of the following?


A) the object's velocity


B) the object's size


C) the object's change in speed


D) the object's acceleration due to gravity​

Answers

Answer:

D.

Explanation:

Weight is determined using the formula [tex]w=mg[/tex] (m=mass, w-weight, g=gravity​). In physics, weight is the force that gravitation exerts upon a body, equal to the mass of the body times the local acceleration of gravity.

Which force is represented by the arrow at
B?


A) Force of friction

B) Force of gravity

C) Tension force

D) Normal force ​

Answers

A is pulling the block straight down toward the center of the Earth, no matter what the slope of the plane may be. A is the force of gravity.

The directions of B and C both depend on the slope of the plane.

B is a force that's parallel to the plane, pulling the block UP the plane. B is the force of friction.

C is a force perpendicular to the plane, preventing the block from falling down through the plane. C is the normal force.

Answer:

A is pulling the block straight down toward the center of the Earth, no matter what the slope of the plane may be. A is the force of gravity.

The directions of B and C both depend on the slope of the plane.

B is a force that's parallel to the plane, pulling the block UP the plane. B is the force of friction.

C is a force perpendicular to the plane, preventing the block from falling down through the plane. C is the normal force.

Explanation:

Which type of electromagnetic wave has the most energy?
A. Microwaves
B. Gamma rays
C. Radio
D. Visible light

Answers

Answer:

B Gamma-Rays

Hope this Helps! Please mark Brainliest!

Answer:

The answer is B. Gamma Rays.

Explanation:

I take AP EX lessons and quiz all the time.

The hubble telescope has helped confirm what about the universe?.

Answers

Answer:

Helped pin down the age for the universe now known to be 13.8 billion years, roughly three times the age of Earth. Discovered two moons of Pluto, Nix and Hydra. Helped determine the rate at which the universe is expanding. Discovered that nearly every major galaxy is anchored by a black hole at the centre.

Explanation:

predict the long term cost and benefit of using renewable or non renewable resources. please help will give brainliest ​

Answers

Answer:

The long term cost and benefit of renewable resources is that it is most likely a one-time purchase kind of thing. For example, if you use solar energy, you only have to buy the solar panels for your roof once. However, if you use gas oil to cook, you have to keep buying since it runs out. Sunlight doesn't run out.

The long term cost and benefit of non renewable resources is that it is something you can profit off of very easily. It will take a lot of time for people to completely switch over to renewable resources, so it is something that can steadily bring in money. Examples of non renewable resources that people constantly use is oil, gas, coal, etc.

a car starts from rest and reaches a speed of 20m/s in 5 second what is the acceleration of the car

Answers

Answer:

4m/s^2

Explanation:

a=v‒u/t (here v is final velocity &u is initial velocity)

a=20m/s‒0m/s/5s

a=20m/s/5s

a=4m/s^2

hope it helps you

What is the mass of an object that accelerates at "-1.56m/s" when pushed leftwards by a force of 300 N and has an opposing frictional force of 169 ?

Answers

m=83.97

F=ma

leftwards force + force of friction = mass * acceleration

-300 N + 169 N = m(-1.56)
-131 = m(-1.56)
m= 83.97

We discussed five indicators of a chemical change. Which was not one of these? Group of answer choices Formation of a precipitate Color Change Formation of a gas Change of temperature Phase change Production of an odor

Answers

gimme em points boi i wan't em gasses

Put yourself in usual bolts running shoes-how would you feel about breaking your own world record ?

Answers

Answer:

Honestly if I broke MY OWN record, I would be shocked.

Explanation:

Breaking your own record means either nobody has succeeded your record therefor its still YOUR record, or nobody had thought to even try to break your record. It would be great to push yourself to further limits and break a record you once made. You should be very proud if you did, because not only did no one break your record yet, you broke it yourself.

If putting yourself in Usain Bolt running shoes, when you break your own record, it either means that no one has ever beaten it.  

What is the world record by Usain Bolt?

100 m in 9.58 seconds is the world record by Usain Bolt at the 2009 IAAF World Championships,

They predict that times will begin to plateau and that it will get harder and harder to beat the record.

Although the sub-nine seconds are on, they think: "It's safe to say that someone will break the nine-second barrier – not necessarily in our lifetime, but it will happen one day."

It would be fantastic to challenge yourself and surpass a previous record.

Therefore, if you did, you should be extremely proud because not only has no one else yet broken your record, but you also accomplished it yourself.

Learn more about Usain Bolt, here:

https://brainly.com/question/30703116

#SPJ2

Give a physical description of radio waves and compare and contrast it with the frequency, wavelength, energy and wave speed with those of other regions of the EMS.

Answers

There is nothing physical about radio waves. They are pulses of energy caused by periodic variations in electric and magnetic fields. These are caused by electrons “jumping” between energy levels. Radio waves have the lowest energy, longest wavelengths and lowest frequencies. These values change gradually as we go through microwaves, infra red, visible light, ultra violet, x-rats abd gamma rays which have the highest energy, highest frequency and shortest wavelength.

A person with a mass of 60.0 kg is traveling at 18 m/s.
How much kinetic energy does this person have?

Answers

Kinetic energy

K = 1 /2 m v ²

= 1 /2 × 60 × 18² = 9720J

Scientists think that birds and other animals, such as sea turtles, may use Earth’s magnetic field to help them navigate. Research which animals might find their way using Earth’s magnetic field and investigate the evidence scientists have found that supports the idea. What would happen to the animal if Earth’s magnetic field were reversed?

Answers

Answer:

Magnetoreception (also magnetoception) is a sense which allows an organism to detect a magnetic field to perceive direction, altitude or location. This sensory modality is used by a range of animals for orientation and navigation, and as a method for animals to develop regional maps

10 POINTS + BRAINLIEST TO FIRST CORRECT ANSWER! :)
How does a foam-filled winter coat help keep a person warm?
It slows down the transfer of thermal energy from outside to inside the coat.
It slows down the transfer of thermal energy from inside to outside the coat.
It speeds up the transfer of thermal energy from outside to inside the coat.
It speeds up the transfer of thermal energy from inside to outside the coat.

Answers

Answer:

The 2nd option

Explanation:

It slows down the transfer of thermal energy from inside to outside the coat.

Answer: It slows down the transfer of thermal energy from inside to outside the coat.

Explanation: In other words, it insulates the heat/coldness

A roller coaster travels 18.0 m at an angle of 13.0° above the horizontal. How far does it move horizontally? Answer in units of m.

Answers

Answer:

here is an example

try to solve by this

x

=

126

10

,

28

m

Explanation:

Drawing the sketch and filling in all the data, we observe that it is a closed triangle where the cosine rule is valid to find the required side for the magnitude of the displacement.

This yields :

x

2

=

85

2

+

45

2

2

(

85

)

(

45

)

cos

150

Solving we get  

x

=

126

m

Then to find the direction of the displacement, we may use the sine rule or the cosine rule in the same triangle to yield that the angle of displacement from the horizontal is  

10

,

28

.

I need help asap!!!!


Answers

Answer:

C

Explanation:

Mass does not change with gravity, but weight DOES.   Higher gravity means MORE weight.

Please help me with this please

I’ll mark you Brainly

Answers

Number 3

Explanation:

Since the gravity is pushing down on potatoes and the bag because of weight, the force is balanced. The gravity makes the bag point downward.

Which represents the order of the forces from weakest to strongest.

Answers

Force is studied by physics and according to it four fundamental forces are recognized at the quantum level ordered from weakest to strongest are: the gravitational force, the weak nuclear force, the electromagnetic force and the strong nuclear force.

What is force?

It is that magnitude that affects a body and is responsible for changes in its state of motion, according to quantum mechanics ordered from weakest to strongest are:

Gravitational force is the force exerted by one mass on the other, being a weak force.

Weak nuclear force is the force responsible for radioactive decay.

Electromagnetic force is the force that affects electrically charged particles and has two directions (attraction-repulsion).

Strong nuclear force is the force that keeps the nuclei of atoms stable, being stronger than the electromagnetic force.

Therefore, we can conclude that four fundamental forces are recognized at the quantum level ordered from weakest to strongest are: the gravitational force, the weak nuclear force, the electromagnetic force and the strong nuclear force.

Learn more about fundamental forces here: https://brainly.com/question/910002

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