Awave is moving toward shore with a velocity of 18.0 m/s. if its period is 4 s,
what is its wavelength? explain your answer.

72 m

Explanation:

The velocity of a wave is expressed as the distance traveled by a periodic perturbation (which is the wavelength) divided by the wave's period , which is a time interval:

Where and

Isolating :

Finally:

This is the value of the wavelength

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.