-. A sky diver jumps from a hovering helicopter and hits the ground at a speed of 30 m/s. How long does it take for the sky diver to land on the ground and how far
does it fall? (Ignoring air resistance and acceleration due to gravity is 10 m/s2).​

Explain the comparisons between nature and packingtown that appears on pages 81 and 82 answer

Which situation will produce the greatest change of momentum

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?