Author Question: Thousands of years ago, after humans began settling in villages, their settlements were energized by ... (Read 143 times)

joesmith1212 · **on:** Jul 29, 2018

Thousands of years ago, after humans began settling in villages, their settlements were energized by

A) gravitational energy.
B) thermal energy.
C) nuclear energy.
D) chemical energy.
E) radiant energy.

Question 2

Enzo throws a rock horizontally with a speed of 12 m/s from a bridge. It falls for 2.28 s before reaching the water below. Ignore air. Just as the rock reaches the water, find (a) the horizontal component of its velocity.

(b) the speed with which it is moving.