A motorcycle accelerates from 15 m/s to 20 m/s over a distance of 50 meters. what is its average acceleration?

Which of the following would reduce the resistance of a metal wire? a. increasing its thickness b. increasing its temperature c. increasing its length d.

Object Z passes object Y after how many seconds?

What theme is represented by frodo? a. even a small individual can make a big difference in the world. b. there is no such thing as free will. c. weak individuals must rely on the strong to survive. d.

Which are examples of projectile motion? Check all that apply. A. An apple rolling across the grown in the northeast direction. B. A skateboard sliding across a horizontal floor. C. An arrow flying toward a target. D. A football kicked into the air.

David drinks a glass of water in his kitchen. The water is at room temperature, and David decides to make it colder by adding ice. Which of the following describes why the ice cubes will melt? A.

Which statement is true about a polarized object? A) It gains electrons and becomes negatively charged. B) It gains protons and becomes positively charged. C) The number of positive and negative charges can be the same. D) It has to be a metal.

Define the law of conservation of momentum in one sentence

A shopping cart rolls from x=19.9m to x=5.40m with an average velocity of - 0.418m/s. How much time did it take? (unit=s)

Where does the energy of a nuclear power plant come from?

When the vapor pressure of a liquid is equal to the atmospheric pressure the liquid?