Author Question: Hydrogen, like electricity, is A) an energy source. B) not an energy source. C) a source of ... (Read 99 times)

tiara099 · **on:** Jul 29, 2018

Hydrogen, like electricity, is

A) an energy source.
B) not an energy source.
C) a source of both thermal and electric power.

Question 2

Suppose you throw an apple horizontally. Neglecting air resistance, just after you release the apple from your hand, the net force on the apple is

A) zero.
B) directed horizontally forward.
C) directed horizontally backward.
D) directed downward.
E) directed upward.