Suppose you put two protons near each other. Because of the electromagnetic force, what will the two protons do?

A) vollide
B) remain stationary
C) attract each other
D) repel each other
E) join together to form a nucleus


D) repel each other

Physics & Space Science

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Which is the most common state of matter in the universe?

a. solid b. liquid c. gas d. plasma e. superfluid

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When a crate of mass m is dragged a distance d along a surface with coefficient of kinetic friction ?k, then dragged back along the same path to its original position, the work done by friction is

a. 0. b. ??kmgd. c. +?kmgd. d. ?2?kmgd. e. +2?kmgd.

Physics & Space Science

The units of momentum are

A. ML/T.
B. M/T.
C.
D.
E.

Physics & Space Science

A pulley has two supporting strands. To lift a load 1 meter means you will have to pull a distance of

A) 1/2 m. B) 1 m. C) 2 m. D) more than 2 m.

Physics & Space Science