The kinetic theory of matter states that the particles that make up all matter are in perpetual motion. we know that a solid cannot change shape because its constituent particles are unable to change position. explain how the particles that make up solid matter can be in perpetual motion if they do not change position.

describe how the kinetic theory of matter defines heat and how heat is affected by the rate of movement of the particles that make up matter.

Afeather of mass 0.001 kg falls from a height of 2 m. under realistic conditions, it experiences air resistance. based on what you know about friction, what can you say about the kinetic energy of the feather as it reaches the ground? acceleration due to gravity is g = 9.8 m/s2. a. ke < 0.0196 j b. ke = 00196 j c. je = 0 j d. ke > 0.0196 j

Choose the most likely outcome of this scenario: jen decided to go bike riding without a helmet. while no one is around during her ride, she is thrown from her bike when her wheel goes into a pothole. she is not injured, but she is terrified to get back on her bike. what happens next? a. her physical health is affected even though she wasn't hurt. b. her mental and emotional health are affected because she is afraid to get back on her bike. c. her social health is affected because she is worried her friends saw the fall. d. her overall health is not affected at all by her fall.

The earth exerts a gravitational force of 500 n on amy. what is amy’s mass in kg?