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Sav [38]
3 years ago
9

If only one external force acts on a particle, does it necessarily change the particle's kinetic energy and velocity? (select al

l that apply.)
Physics
1 answer:
ivann1987 [24]3 years ago
7 0
It's necessary to change the particles kinetic and velocity to open external and eternal.
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A man with mass 81 kg lies on the floor. what is the normal force on the man?
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Answer:

Forces come in pairs, so the force of gravity (9.8 N) with the mans weight (794N) on the earth is counteracted with the normal force ( the force of the earth back on the man) which is the same

Explanation:

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3 years ago
A square piece of tin has 12 inches on a side. An open box is formed by cutting out equal square pieces at the corners and bendi
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Answer:

Explanation:

Given a square Piece whose side is 12 inches

Now square pieces are cut from each corner to make it a open box

Suppose x is the length of square piece at each corner

then

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we get x=6 and 4 but at x=6 volume becomes zero therefore x=4 is valid

V=\left ( 12-2\cdot 4\right )^2\cdot 4

V=4^3

V=64\ in.^3

6 0
3 years ago
Write a question you would like to see on a quiz to calculate NET FORCE.
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Answer:

How do you find the net force?

Explanation:

i think this is want you asked for?

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2 years ago
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