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saul85 [17]
2 years ago
14

Can someone awnser this

Physics
1 answer:
Svetllana [295]2 years ago
6 0

Answer:

The force of gravity exerts a downward force. The floor exerts an upward force. Since these two forces are of equal magnitude and in opposite directions, they balance each other.

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Round the following off to required number of significant figures.
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Answer:

140

hope this helps

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Explanation:

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A geologic event causes changes to the physical makeup of a particular place and occurs _____.
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A geologic event causes changes to the physical makeup of a particular place and occurs slowly.

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A 0.140-kg baseball is dropped from rest. It has a speed of 1.20 m/s just before it hits the ground, and it rebounds with an upw
irga5000 [103]

Answer:

22 N upward

Explanation:

From the question,

Applying newton's second law of motion

F = m(v-u)/t....................... Equation 1

Where F = Average force exerted by the ground on the ball, m = mass of the baseball, v = final velocity, u = initial velocity, t = time of contact

Note: Let upward be negative and downward be positive

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Substitute into equation 1

F = 0.14(-1-1.2)/0.014

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<span>As a car drives with its tires rolling freely without any slippage, the type of friction acting between the tires and the road is kinetic friction.

We exert force to move the object from rest and in this case, static friction works. But, when the object comes in motion, then kinetic friction works. Here, since the car is driving without slipping means, kinetic friction acts on it. Its also called sliding or dynamic friction.</span>
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