Which two objects repel each other?

a.
a proton and a neutron

b.
two neutrons

c.
a proton and an electron

d.
two protons

In which scenario is the least amount of work done on a crate? a force of 120 n moves it 25 m. a force of 115 n moves it 26 m. a force of 130 n moves it 22 m. a force of 125 n moves it 27 m.

Acar accelerates from 5.0 m/s to to 11 m/s at a rate of 3.0 m/s^2. how far does it travel while accelerating? 20m 117m 43m 16m

What is the length x of the side of the triangle below? (hint: use the cosine function)