When you rub a glass rod with a piece of silk, the glass rod becomes positively charged?

Research has shown _ often depends on one's current status, circumstances, and expectations.

The distance traveled by an object divided by the time it takes to travel that distance is called a. average velocity. c. average acceleration. b. average speed. d. activity.

Find the volume of a rectangular cube of sides 2 mm, 3 mm, and 5 mm.

Can a bike move on a frictionless surface?

4. How much force is required to stop a 60 kg person traveling at 30 m/s during a time of a) 5.0 seconds b) 0.50 seconds c) 0.05 seconds

What kind of star gives rise to a type i supernova? a. white dwarf stars b. massive main sequence stars c. red giant stars?

Example of an object in motion

A proton and an alpha particle are momentarily at rest at a distance r from each other. They then begin to move apart. Find the speed of the proton by the time the distance between the proton and the alpha particle doubles.

Why is it a good idea to extend your bare hand forward when you are getting ready to catch a fast-moving baseball? a. So you can catch the ball with a stiff arm, increasing the time to slow the ball thus deceasing the force. b.

At room temperature what is the strength of the electric field in a 12-gauge copper wire (diameter 2.05 mm that is needed to cause a 2.75 a current to flow?