Martin rides his motorcycle at 20 m/s. suddenly he sees a row of stones blocking the road 170 m ahead. He applies the brakes and the motorcycle is
decelerated at 2 m/s?. Justify will he be able to stop in time?
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What is the earliest point in the universe that we can observe? why can’t we see back further than this?

In all trials, the magnitude of the final velocity for g1 + g2 was less than the magnitude of any initial velocity. as mass increased, what happened to the velocity? the velocity decreased. the velocity increased. the velocity of g1 + g2 could not be measured. the velocity was not affected by the mass increase.

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.