3. A block of mass m is moved over a distance d. An applied force F is directed perpendicularly to the block's displacement. How much work is done on the
block by the force F?|
m
d

Determine the fraction of the magnitude of kinetic energy lost by a neutron (m1 = 1.01 u) when it collides head-on and elastically with a target particle at rest which is 21h (heavy hydrogen, m = 2.01 u).

Which composition of water moves to begin a deepwater current?

Which statement best explains why the overall charge on an atom is zero?