Which is a longitudinal wave that requires a medium to move?

A. sound wave

B. Ocean wave

C. Lightwave

D. Radio wave

E. Microwave

Two wires are made out of the same metal, but one wire is twice as long as the other wire. which wire will have the greatest elastic modulus? the shorter wire

A whistle you use to call your hunting dog has a frequency of 21 kHz, but your dog is ignoring it. You suspect the whistle may not be working, but you can't hear sounds above 20 kHz.

What is the radius of the Earth?

The resistance of a circuit is doubled. How is the value of the current affected? A. The current decreases by a factor of 1/4 B. The current decreases by a factor of 1/2 C. The current increases by a factor of 2. D.

I will take my exam tommorrow, what shall i do?

A 125-kg merry-go-round in the shape of a uniform, solid, horizontal disk of radius 1.50 m is set in motion by wrapping a rope about the rim of the disk and pulling on the rope.

Jose wandered 4 kilometers at 2 kilometers per hour. How long did Jose wander?

What is the acceleration of a 10kg pushed by a 5n force

A device that changes thermal energy into mechanical energy

You and your roommate are moving to a city 380 mimi away. Your roommate drives a rental truck at a constant 55 mi/hmi/h, and you drive your car at 65 mi/hmi/h. The two of you begin the trip at the same instant.