Two rocks are moving through empty space in a straight line at the same speed. one has a mass of 10 kg, the other has a mass of 50 kg. which statement about the rocks is true? a. both will be stopped by the same amount of force acting against them. b. the one with less mass takes more force to stop. c. the one with greater mass takes more force to stop. d. both will stop on their own without any force acting on them.

How have the competing explanations' experiments on atoms affected the development of the atomic model?

The frequency of the fundamental of the guitar string is 320 hz. at what speed v do waves move along that string?

This chart shows characteristics of three different types of waves. which statement is best supported by the information in the chart? wave x and wave y are mechanical waves, and wave z is an electromagnetic wave. wave x and wave y are electromagnetic waves, and wave z is a mechanical wave. wave x and wave z are electromagnetic waves, and wave y is a mechanical wave. wave x and wave z are mechanical waves, and wave y is an electromagnetic wave.