**Running at 2.0 m/s, Bruce, the 45.0-kg quarterback, collides with Biff, the 90.0-kg tackle, who is traveling at 7.0 m/s 1n the other direction. Upon collision, Biff continues to travel
forward at 1.0 m/s. How fast is Bruce knocked backwards?

Which material produces static charge when rubbed?

When many atoms are split in a chain reaction, a large explosion occurs. this is an example of what type of energy conservation

Air enters a compressor operating at steady state at 1.05 bar, 300 k, with a volumetric flow rate of 93 m3/min and exits at 12 bar, 400 k. heat transfer occurs at a rate of 15.5 kw from the compressor to its surroundings. assuming the ideal gas model for air neglecting kinetic potential energy effects, determine the power in put in kw.