An object with a mass of m = 3.00 kg has an initial velocity of vi = 6.00 m/s and a final velocity of vf = −8 m/s.
Determine the following:
(a) Determine its initial kinetic energy. Ki = J
(b) Determine its final kinetic energy. Kf = J
(c) Determine its initial momentum. pi = kg m/s
(d) Determine its final momentum. pf = kg m/s

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.

Estimate of the number of stars in our galaxy

Apropagating wave in space with electric and magnetic components. these components oscillate at right angles to each other. it may travel in a vacuum.