Find out the speed of the first ball after the collision
A 13-kg ball moving at 24 m/s collides elastically and head-on with a second 5-kg ball moving in the opposite direction with -15 m/s. What is the speed of the first ball after the collision? Give your answer in m/s to three significant figures.
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At the diffuser exit, the temperature is 430 K. Determine the velocity (m/s) at the exit of the diffuser. Use the tables for air as an ideal gas.
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