A water wave is 3m tall. Taking a picture of the wave, you measure 7m between peaks. With your stopwatch, you measure .8 seconds between a peak and a trough. Write the wave function for this water wave. Ignore the initial phi.

The water wave function is given as                                

Explanation:

Water waves are surface waves, which is a mixture of longitudinal and transverse waves.

The general wave equation is given as;

where;

A is the amplitude = 3 m

λ is one wavelength = 7 m

t is period for one complete oscillation, T = 8 s

v is the velocity of the wave;

for each period, the wave  travels one wavelength, v = λ/T = 7/8 = 0.875m/s

Therefore, the water wave function is given as

their crystal patterns have been disrupted by stress

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.