Which mechanical waves needs a medium to travel through?

Transverse and longitudinal waves only

Longitudinal and surface waves only

At mechanical waves need a medium to travel through

Surface waves only

The musical note A above middle C has a frequency of 440 Hz. If the speed of the sound is known to be 350 m/s, what is the wavelength of this note?

You ride on an elevator that is moving with constant upward acceleration while standing on a bathroom scale. the reading on the scale is you ride on an elevator that is moving with constant upward acceleration while standing on a bathroom scale.

What happens to the speed of an object that is dropped in free fall

A 300-kg bear grasping a vertical tree slides down at constant velocity. the friction force between the tree and the bear is

A metal wire is bent into a square and carries auniform current throughout it. The net magneticfield at the center of this square is zero.•The net magnetic field inside a conductor mustbe zero. a. True b. False

An ant is crawling along a straight wire, which we shall call the x axis, from A to B to C to D

How does a very heavy object resist sliding sideways when you push hard on it?

A go-cart traveled at 200 meters in 18 seconds. what was the average speed of the go cart?

A cartoon plane with four engines can accelerate at 8.9 meters per second squared

Convert 1087 ft/s to mi/hr