What is occurring when two waves traveling along the same medium meet and cancel each other out?

a.) destructive interference

b.) constructive interference

c.) reflection

d.) refraction

What are the 5 steps in the process of air circulation in order

What does Pangaea mean?

An example of something that is biodegradable is a leaf in a compost pile. a. True b. False

Which scientists supported the heliocentric model of the solar system? Check all that apply. a. Aristotle b. Copernicus c. Galileo Kepler d. Ptolemy

What is an essential characteristic of an object in equilibrium? Zero velocity Zero acceleration Zero momentum Zero energy

Hannah has information about an object in circular orbit around Earth. mEarth = 6.0 * 1024 kg G = 6.67 * 10-11 What additional information does Hannah need in order to calculate the tangential speed of the orbiting object?

All objects are attracted to each other by the force of

Samantha wants to study circus performance when she gets to college. She has mastered many physical skills already, but she keeps falling short on her jumps.

Is this Conduction, Convection, or Radiation: The top floor of a building is the warmest.

The law that states the volume of gas is directly proportional to its temperature in kelvins if the pressure and the number of particles is constant is * a. Boyle's Law b. Gay-Lussac's Law c. Einstein's law. d. Charles's law.