Astone is thrown straight up from the ground with an initial speed of 15.2 m/s. at the same instant, a stone is dropped from a height of h meters above ground level. the two stones strike the ground simultaneously. find the height h. the acceleration of gravity is 9.8 m/s 2 . answer in units of m.

What do you think car designers do if the damage caused by a crash test is too severe?

Atwo-stage air compressor operates at steady state, compression 10m^3/min of air from 100 kpa and 300k to 1200 kpa. an intercooler between the two stages cools the air to 300k at a constant pressure of 350 kpa. the compression processes are isentropic. a) calculate the power required to run the compressor, in kw b) compare the result to the power required for isentropic compression from the same inlet state to the same final pressure.

What are similarities and differences between refraction, reflection, diffraction and absorption?