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Llana [10]
3 years ago
12

A system where friction is considered and calculated

Physics
1 answer:
katrin [286]3 years ago
7 0

Answer:

the answer is B :)

Explanation:

:)

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trapecia [35]

Answer:

it is c

Explanation:

8 0
3 years ago
A book falls off a shelf that and hits the ground at 10.0 m/s. How far did it fall?
ELEN [110]

Answer:

Explanation:

14 m/s

Explanation:

The motion of the book is a free fall motion, so it is an uniformly accelerated motion with constant acceleration g=9.8 m/s^2 towards the ground. Therefore we can find the final velocity by using the equation:

where

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An experiment in which alpha particles were used to bombard thin sheets of gold foil led to the conclusion that an atom is compo
fiasKO [112]

Answer:

a small dense nucleus with positive charge and the nucleus is surrounding by orbiting electrons.

Explanation:

An experiment in which alpha particles were used to bombard thin sheets of gold foil led to the conclusion that an atom is composed mostly of a small dense nucleus with positive charge and the nucleus is surrounding by orbiting electrons.

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