Which of these is a source of voltage?

a. a battery

b. a generator

c. an electrical outlet

d. all of these are voltage sources.

How many newtons of force are represented by the following amount: 3 kg. m/sec2

A child goes down a slide with an initial height of 4m. What is his speed at the bottom of the slide?

One pipe has successive harmonics of 165 Hz, 275 Hz, and 385 Hz, and another pipe has successive harmonics of 165 Hz, 220 Hz, and 275 Hz. (a) Which pipe is closed at one end and which is open at both ends

If object A has a mass of 10kg and object B has a mass of 20 kg, and both are dropped from the same distance (not considering air resistance)

What is the best term used to describe a vehicle hitting another object?

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?

A conductor has a net charge of + 24 uC. How many electrons are needed to make this conductor neutral