IMPORTANT QUESTION ANSWER QUICK PLEASE!!!!!!

Physics

1 answer:

Flura [38]3 years ago

7 0

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Which equations can be used to solve for acceleration? Select four options.

tatiyna

Explanation:

Acceleration of an object is calculated by finding the change in its velocity divided by time taken.

If $v_i$ is initial velocity, $v_f$ is final velocity and t is time taken. Then the acceleration of the object is given by :

$a=\dfrac{v_f-v_i}{t}\\\\at=v_f-v_i\\\\v_f=v_i+at$ .....(1)

So, the above equation is used to find acceleration. It is called the first equation of motion. After rearranging equation (1), the correct options are :

$t=\dfrac{\Delta v}{a}$

$v_i=v_f-at$

$v_f=v_i+at$

$a=\dfrac{\Delta v}{t}$

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Briefly describe the layers of the earth.

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<span>Crust: The thin, outer layer of the earth. Less than 1% of the Earth's mass.Made of solid rock, broken into plates.

Mantle: Molten rock on which plates float. Contains 67% of the earth's mass.
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Core: Inner layer of the Earth. Made of both solid and liquid metals.</span></span>

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A ball has a momentum of 35 kg·m/s. If the mass of the ball is 5.0 kg, what is the speed of the ball?

lana66690 [7]

Answer:

Simply divide the kgm/s by the 5kg

35kgm/s ÷ 5.0kg = 7m/s

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Two forces are acting on an object, but the net force on the object is O N. For the net

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