The amplitude of a particular wave is 1 m. the top to bottom (crest to trough) distance of the wave is 0.5 m 1 m 2 m cannot be determine.

An astronomer at the equator measures the doppler shift of sunlight at sunset. from this, she calculates that earth’s tangential velocity at the equator is 465 m/s. the centripetal acceleration at the equator is 3.41  10 2 m/s 2 . use this data to calculate earth’s radius.

What is work? how much work is done to move an object 0 meters?

Which of the following is not am example of a polymer? protein nylon kevlar concreta