What is required to bring about phase change?

Which color of aurora gives off higher energy light, green or red?

Spring tides are the lowest of the year true or false

Janetta ran a campaign for student body president, and she really wanted to win. She gave election buttons to everyone and told them how much she appreciated their friendship. Then Janetta told each person that she hoped for a vote.

2. Weight is a force from gravity pulling down on any object with mass. True False

What is the average velocity between 12.0 and 15.0 seconds

What are some methods humans have used to control flooding and what has been done to worsen the effects of flooding?

Suppose an electron is moving with a constant velocity until it encounters a positively charged sphere on its right. How does the sphere alter the trajectory of the electron? a. It has no effect on the trajectory of the electron b.

Most of the mass of the Milky Way exists in the form of: a.) starsb.) gasc.) dustd.) dark matter

A 55kg cart is pushed by a force of 225 n. what is the carts acceleration?

F we wanted to compare muscular endurance between a very large person and a very small person, what method would be the best method to use? a. absolute method b. maxing out c. callisthenic method d. fixed percentage of rm method