A human hair is approximately 57 um in di-

ameter.

Express this diameter in meters.

Answer in units of m.

If 2 objects had the same momentum, what must be true about the mass of the object that traveled the fastest?

How can a high school student have more momentum than a truck

Who would use more energy in a day - someone who plays a lot of sport or someone who plays a lot of computer games

What is a strong, short-lived magnet created by a looped electrical current.

If you throw a raw egg against a wall, you'll break it, but if you throw it with the same speed into a sagging sheet it won't break. why? 1. the sheet is much slicker than the wall. 2.

Which of the following statements are correct? 1. Electrons and protons have identical masses but opposite charges. 2. Most of an atom's mass is concentrated in a small, positively charged, nucleus. 3.

What are some changes that can be caused by sound energy?

A cheetah can run at 30 m/s, but only for about 12s. How far will it run in that time

A car is traveling 80 km/h if the car's speed remains constant how far will it have traveled in 3 hours a. 3km b. 26.7km c. 80 km d. 240 km

True or False? Gases such as water vapor condense when they are * heated*.