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

Accelerated depreciation has an advantage for profitable firms in that it moves some cash flows forward, thus increasing their present value.

There is a table that is filled with lab materials. The materials include a 500-g weight, a spring scale, dynamic cart, a digital timer, a pulley, a thermometer, and a graduated cylinder.

1) how does reflection differ from diffraction? A.) reflection is the only process in which the wave does not continue moving forward. B.) reflection is the only process that involves a change in the wave C.

True or false static is weightless colorless and odorless

Which two statements are true? A. a moving magnetic field creates an electric field. B. a constant magnetic field creates an electric field. C. a constant electric field creates a magnetic field. D. a moving electric field creates a magnetic field

A car travels 35.0 mph north for 1.00 hour, then 40.0 mph east for 0.0500 hour, and finally 50.0 mph northeast for 2.00 hours. Calculate the average speed.

A 500 lb steel beam is lifted up by a crane to a height of 100 ft and is held there. A) How much work is being done to hold the beam in place? B) How much work was done to lift the beam?

If Light is shone through the slits of a card onto a sheet of white paper describe what is seen.

When you break a magnet in half, how many poles does each piece have? Explain.

What can you use to unscrew a tiny screw?