Explain why velocity = distance/time is NOT the correct way to determine the instantaneous velocity at each instant in time.

Steam enters an adiabatic diffuser at 150 kpa and 1208c with a velocity of 550 m/s. determine the minimum velocity that the steam can have at the outlet when the outlet pressure is 300 kpa.

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2

Acamcorder has a power rating of 20 watts. if the output voltage from its battery is 9 volts, what current does it use?