You take a running jump off the end of a diving platform at a speed of 7 m/s and splash into the water 1.5 seconds later.
a.) how far horizontally do you land from your takeoff point?
b.) how high is the diving platform?

Amichelson interferometer operating at a 600 nm wavelength has a 3.02-cm-long glass cell in one arm. to begin, the air is pumped out of the cell and mirror m2 is adjusted to produce a bright spot at the center of the interference pattern. then a valve is opened and air is slowly admitted into the cell. the index of refraction of air at 1.00 atm pressure is 1.00028.how many bright-dark-bright fringe shifts are observed as the cell fills with air?