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Sholpan [36]
3 years ago
8

An apple in a tree has a gravitational store of 8J. As it falls, it accelerates constantly until it hits the ground. What is the

apple's maximum kinetic energy store?
Physics
1 answer:
natita [175]3 years ago
5 0

Answer:

Explanation:

Given that on the tree the gravitational energy stored is 8J

Then, mgh = 8J.

The apple begins to fall and hit the ground, what is the maximum kinetic energy?

Using conservation of energy, as the above is about to hit the ground, the apple is at is maximum speed, and the height then is 0m, so the potential energy at the ground is zero, so all the potential of the apple at the too of the tree is converted to kinetic energy as it is about to hits the ground. Along the way to the ground, both the Kinetic energy and potential energy is conserved, it is notice that at the top of the tree, the apple has only potential energy since velocity is zero at top, and at the bottom of the tree the apple has only kinetic energy since potential energy is zero(height=0)

So,

K.E(max) = 8J

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Tcecarenko [31]

Answer:

The positive ball would go first to the negatively charged plate.

Explanation:

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3 years ago
Easy defimation of newtons second law of motion
shtirl [24]
Hi pupil here's your answer ::

_______________________________

Newton's Second Law  of motion states that the rate of change of momentum of an object is proportional to the applied unbalanced force in the direction of the force.
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hope that it helps. . . . . .
8 0
3 years ago
Why is friction useful between your feet and the ground?
mixer [17]

Answer:

It allows you to walk faster.

Explanation:  

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2 years ago
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Paha777 [63]

Answer:

u = - 38.85 m/s^-1

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3 years ago
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OLga [1]
To get the charge along the inner cylinder, we use Gauss Law
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