Astudent is testing her reaction time by trying to keep a light bulb on for exactly 4 seconds by matching a stopwatch. when she turns the light bulb off, the stopwatch reads 4.13 seconds. what is her reaction time?

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.

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt

If the spring constant k of a pogo stick is 3500 n m and the weight of the person on the pogo stick is 700 n, how much is the spring in the botom of the pogo stick compressed?