The arrow is fired with an initial upward velocity of 32 ft/s.option 4 is correct.
What is velocity?The change of displacement with respect to time is defined as the velocity. Velocity is a vector quantity. it is a time-based component.
Velocity at any angle is resolved to get its component of x and y-direction.
The given data in the problem is;
g is the acceleration due to gravity
v₀ is the initial speed=?
h is the initial height = 4+32t-16t²
The relation of the height with the velocity and time is given according to the motion will be;
[tex]h(t)= -\frac{1}{2}gt^ 2+v_0t+h_0 \\\\[/tex]
h = 4+32t-16t²
Hence the value of the v₀ will be 32 ft/sec.
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Answer:
Option 4
Explanation:
i got it right on ed 2022
An airplane lands with an initial velocity of 70.0 m/s and then decelerates at 1.50 m/s2 for 40.0 s. What is its final velocity?
Answer:
10 m/s
Explanation:
vi = 70 m/s
a = -1.5 m/s²
t = 40 s
vf = vi + at
= 70 + (-1.5 x 40)
= 10 m/s
The final velocity will be "10 m/s".
Given:
Initial velocity,
[tex]v_i = 70 \ m/s[/tex]Deceleration,
[tex]a = -1.50 \ m/s^2[/tex]Time,
[tex]t = 40 \ s[/tex]As we know,
→ Final velocity, [tex]v_f = v_i+at[/tex]
By substituting the values, we get
[tex]= 70+(-1.5\times 40)[/tex]
[tex]= 70+(-60)[/tex]
[tex]= 70-60[/tex]
[tex]= 10 \ m/s[/tex]
Thus the above answer is appropriate.
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How much force is needed to accelerate a 3kg skateboard at 5m/s2
F = ma
F = 3*5
F = 15 N
Hope it helps :)
Answer:
F=15
Explanation:
What is wrong with the following diagram?
What is wrong with the diagram is : ( 4 )
The spot with the "maximum kinetic energy" should be on the lowest point of the roller coaster at the far left side on the bottom.Gravitational potential energy vs kinetic energyThe maximum gravitational potential energy is located at the highest peak which the roller coaster attains while as the roller coaster comes down from the peak the gravitational potential energy decreases while the kinetic energy increases.
The point at which the roller coaster should attain it maximum kinetic energy should be at the lowest point ( i.e far left side of the bottom ).
Hence we can conclude that error in the diagram is the spot with the "maximum kinetic energy" should be on the lowest point of the roller coaster at the far left side on the bottom.
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Which of the following types of galaxies are typically reddest in color?
- spirals
- irregulars
- ellipticals
Will mark brainliest!
Answer:
It's ellipticals!!
Explanation:
hope its right
How can we measured the volume of spherical object?
HELP, 15 POINTS!
How does uniform motion relate to velocity and acceleration?
For an object to move in a uniform motion it has to have either a constant velocity or a constant acceleration. If the object has a constant velocity then it is moving at zero acceleration and this means moving with out slowing down or speeding up.
Which of the following accounting principles prescribes that a company record its expenses incurred to generate the revenue reported?.
Answer:
Matching principle
Explanation:
Matching principle is an accounting principle for recording revenues and expenses. It requires that a business records expenses alongside revenues earned.
What Fitnessgram test is testing your CARDIORESPIRATORY ENDURANCE?
Answer:
pacer test
Explanation:
What are potential sources of error in Marta's
experiment?
Answer:
She only looked at the results for lunch and no other meals. She did not define what “healthy” means. She tested a different number of girls and boys and did not factor that into her results. Her study is biased.
Explanation:
Answer:
She only looked at the results for lunch and no other meals. She did not define what “healthy” means. She tested a different number of girls and boys and did not factor that into her results. Her study is biased.
Explanation:
Explanation:
What is the power of a bulb rated at 5 A, 6 V?
Answer:
30watts
Explanation:
P = IV = 5 x 6 = 30watts
What is 1,000 kilograms in Newtons?
Answer:
9800 N
Explanation:
F = mg
I am assuming the question is what is the weight of a 1000kg on earth
If a space rover has a mass of 3900 kg on Earth, then what is
its mass when it lands on Mars?
kg
Do not include units in your answer.
If a space rover has a mass of 3900 kg on Earth, then its mass when it lands on Mars will be the same i.e. 3900 kg.
What is mass?Mass is the amount of matter present in the object.
The mass of the object is always constant, anywhere it is on the Earth or Moon or any other planet.
Thus, If a space rover has a mass of 3900 kg on Earth, the mass on Mars when it lands will be 3900kg.
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Question 7
1 pts
According to the modern model of an atom,
-the number of protons in the atoms of one type of element will vary.
-moving electrons form an electron cloud in an atom.
-electrons are located in the nucleus of an atom.
-neutrons have a positive charge.
Answer:
I Believe The Answer Is B
Explanation:
A gun with a muzzle velocity of 65.2 m/s is fired horizontally from a tower. Neglecting air resistance, how far downrange in meters will the bullet be 2.7 seconds later
Answer:
s ≈ 35.8 m
Explanation:
Let's apply the uniform acceleration equation to find the vertical height travelled after 2.7 seconds.
[tex]s = ut + \frac{1}{2}at^2[/tex]
s = distance travelled
u = initial vertical velocity
t = time taken
a = gravitational acceleration
The gun is fired horizontally, hence there is no initial vertical velocity.
[tex]s = 0(2.7) + \frac{1}{2}(9.81)(2.7)^2[/tex]
[tex]s = 35.75745 m[/tex]
s ≈ 35.8 m
Describe the 4 steps taken to separate a solid mixture of iron fillings, chalk powde
and table salt based on their properties given below.
[3]
The first step has been done for you.
Soluble in water?
Magnetic?
Decompose upon
heating?
No
Yes
No
Iron
Fillings
Chalk
powder
able salt
No
No
Yes
Yes
No
No
Answer:
no yes
Explanation:
A circus truck full of monkeys has a mass of 3175 kg. The kinetic energy of the circus truck is 128,587.5 J. Calculate the speed of the truck.
Explanation:
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A circus truck full of monkeys has a mass of 3175 kg. The kinetic energy of the circus truck is 128,587.5 J. The speed of the truck is 9 m/sec
What is speed?The speed of an object is the magnitude of the change of its position over time or the magnitude of the change of its position per unit of time; it is thus a scalar quantity.
Kinetic Energy =(.5) Mass. (Velocity)²
K.E = 0.5 m.v²
81 = v²
v = 9 m/sec
A circus truck full of monkeys has a mass of 3175 kg. The kinetic energy of the circus truck is 128,587.5 J. The speed of the truck is 9 m/sec
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How long does it take for mercury to revolve around the sun.
Answer:
88 days
Explanation:
Mercury take 88 days to revolve around the sun.
A hot air balloon hovers at 92.4 m above the ground. The pilot drops a box over the edge of the basket. How fast does the person standing 10 m away, have to go to catch the box, before it hits the ground?
Answer:
The person has to move at the speed of 2.30 m/s towards the dropping point to catch the box.
Explanation:
Let t be the time taken by the box to reach the ground and v be the speed of the person on the ground standing 10 m away from the dropping
point.
As distance=(speed) x (time), so
[tex]10=vt\cdots(i)[/tex]
Initially, the height of the box from the ground is 92.4 m.
So, the displacement, s, covered by the box when it reached the ground,
[tex]s=92.4[/tex] m in the downward direction.
The gravitational force action of the box is also in the downward direction.
The initial velocity of the balloon, u=0.
According to the equation of motion,
[tex]s=ut+\frac1 2 at^2[/tex]
where a is the acceleration, u is initial velocity and.
Here, [tex]a=g=9.81 m/s^2[/tex] (acceleration due to gravity) and s and a are having the same direction.
So, on putting the values in the equation, we have
[tex]92.4=0\timest+ \frac 1 2 (9.81)t^2[/tex]
[tex]\Rightarrow t^2=\frac{92.4\times 2}{9.81}[/tex]
[tex]\Rightarrow t=\sqrt{\frac{92.4\times 2}{9.81}}[/tex]
[tex]\Rightarrow t=4.34[/tex] seconds.
So, the time available for the man on the ground to catch the bot is 4.34 seconds.
Now, from equation (i),
[tex]10=v\times 4.34[/tex]
[tex]\Rightarrow v = 10/4.34[/tex]
[tex]\Rightarrow v = 2.30[/tex] m/s.
Hence, the person has to move at the speed of 2.30 m/s towards the dropping point to catch the box.
How many elements does glucose contain
Answer:
three
Explanation:
It just is
Answer:
6 i think
Explanation:
According to the thin-lens equation, when an object is infinitely far away from a lens, where will the image form?.
The image will form at the focal point
1/object + 1/image = 1/focal
If the object distance is infinite then the image distance equals the focal distance
A truck is pulling a trailer down a highway. The total mass of the trailer is 360kg and the
force at which the truck is pulling is 7.200N, What is the acceleration of the truck?
Question :-
A Truck is Pulling a Trailer down a Highway . The Total Mass of the Trailer is 360kg and the Force at which the Truck is pulling is 7200 Newton . What is the Acceleration of the Truck ?Answer :-
Acceleration of the Truck is 20 m/s² .Explanation :-
As per the provided information in the given question, we have been given that the Mass of the trailer is 360 kg . Force is given as 7200 Newton . And, we have beena asked to calculate the Acceleration of the Truck .
For calculating the Acceleration , we will use the Formula :-
[tex] \bigstar \: \: \: \boxed {\sf{ \: Acceleration \: = \: \dfrac {Force}{Mass} \: }} [/tex]
Therefore , by Substituting the given values in the above Formula :-
[tex] \dag \: \: \: \sf {Acceleration \: = \: \dfrac {Force}{Mass}} [/tex]
[tex] \longmapsto \: \: \: \sf {Acceleration \: = \: \dfrac {7200}{360}} [/tex]
[tex] \longmapsto \: \: \: \textbf {\textsf {Acceleration \: = \: 20 }} [/tex]
Hence :-
Acceleration = 20 m/s² .[tex] \underline {\rule {180pt} {4pt} } [/tex]
Answer:
A Truck is Pulling a Trailer down a Highway . The Total Mass of the Trailer is 360kg and the Force at which the Truck is pulling is 7200 Newton . What is the Acceleration of the Truck ?
Answer :-
Acceleration of the Truck is 20 m/s² .
Explanation :-
As per the provided information in the given question, we have been given that the Mass of the trailer is 360 kg . Force is given as 7200 Newton . And, we have beena asked to calculate the Acceleration of the Truck .
For calculating the Acceleration , we will use the Formula :-
\bigstar \: \: \: \boxed {\sf{ \: Acceleration \: = \: \dfrac {Force}{Mass} \: }}★
Acceleration=
Mass
Force
Therefore , by Substituting the given values in the above Formula :-
\dag \: \: \: \sf {Acceleration \: = \: \dfrac {Force}{Mass}}†Acceleration=
Mass
Force
\longmapsto \: \: \: \sf {Acceleration \: = \: \dfrac {7200}{360}}⟼Acceleration=
360
7200
\longmapsto \: \: \: \textbf {\textsf {Acceleration \: = \: 20 }}⟼Acceleration = 20
Hence :-
Acceleration = 20 m/s² .
What effect do clouds have on the color of the sky?
a) they transmit light waves.
b) they reflect light waves.
c) they absorb light waves.
d) they scatter light waves.
Answer:
they reflect light waves
Explanation:
The tiny drops or ice particles in clouds scatter between 20 and 90 percent of the sunlight that strikes them
Answer:
They reflect light waves
Explanation:
Please i just need help
Answer:
The first one is A gravity does not effect wind and the second one is A also because the we know right a way that the moon is closest to Earth
see attached, thanks !!
What is the volume of the shape below?
I think it is 18(c.m)2 but their is no unit for the length,width,height
Write any 4 equations base on velocity and acceleration.
The term for a geographic locations regit above sea level is
Answer:
level HAHAHAHAHAH chariss
What circumstances must be in place for there to be a lunar eclipse?.
Answer:
When the Sun, the Earth, and the Moon are all aligned in space, a lunar eclipse occurs. The Moon reflects the Sun's light onto the Earth. The Earth gets in the way of the Sun in this case, keeping sunlight from reaching the moon. A lunar eclipse happens if this alignment is ideal.
Explanation:
Rephrased it so u dont have to<3 Hope this helped!
A car has a mass of 1.50 x 10^3kg. If the force acting on the car is
6.75 X 10^3 N to the east, what is the car's acceleration?
How are distance and elapsed time different?
Answer:
hope it helps...
Explanation:
The length an object moves through its motion is called the distance. ... The motion of an object takes time to occur. That is, moving from one place to another happens in the course of time. Such a time interval is called the elapsed time.
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Distance is a numerical representation of the distance between two objects or locations. The elapsed time is the name given to such a period of time.
What is the distance?Distance is a numerical representation of the distance between two objects or locations.
The distance can refer to a physical length or an estimate based on other factors in physics or common use. |AB| is a symbol for the distance between two points A and B.
The relation between the distance and the time is found as;
distance = speed × time
[tex]\rm d = v \times t[/tex]
The distance is the length of time an item moves during its motion. An object's motion needs time to occur. That is, traveling from one location to another occurs across time.
The elapsed time is the name given to such a period of time. It is denoted by t.
Hence the denotation and the defination of both physical quantity is different.
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