The wind blows a rock of mass m off a cliff. the rock hits the ground below with speed v. then a rock of mass 2m is blown off the same cliff. it will hit the ground at what speed? assume that air resistance is negligible for both rocks.

2v

0.5v

4v

v

Examine the nuclear reacti why is this classified as a nuclear reaction rather than a chemical reaction? it is not balanced. a new compound is formed. a change has occurred in a nucleus. a new element has been formed.

A17,250 kg rocket is pushed with a thrust of 6,450,284 n. what is the acceleration of the rocket?

Why can blue light and yellow light combine to produce white light? question 17 options: they are both primary colors of light. they absorb each other's wavelengths. because blue, yellow, and white are primary colors. they are complementary colors of light.