Two identical cars are driving in opposite directions at the same speed. Their kinetic energies have . Two identical cars are driving in opposite directions at the same speed. Their kinetic energies have . the same magnitude and sign different magnitudes and opposite signs the same magnitude, but opposite signs different magnitudes, but the same sign

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.

Which notation is used to represent an alpha particle? a. b. c. d.

This is for my 8th grade science class, i really don’t understand. can someone me? , lol.