Part A The tomato is dropped. What is the velocity, v, of the tomato when it hits the ground?
Part B
Assume 84.9 % of the work done in Part A is transferred to kinetic energy, E, by the time the tomato hits the ground.
w = 31.4 J
205 g tomato
15.6 m

Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. the scale reads 830 n for the first 2.4 s after the elevator starts moving, then 930 n for the next 2.4 s. part a what is the elevator's speed 4.8 s after starting? express your answer with the appropriate units.

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?

Which of the following best describes the shape of earth's orbit? a.ellipticalb.circularc.spirald.figure eight