Q. A 1500 kg automobile travels at 90km/h along a straight concrete highway. Faced with an emergency situation, the driver james on the brakes and car skids to a stop. What would be the car's stopping distance for a dry pavement and a wet pavement?
Q. A gas increases in pressure from 2.0 atm to 6.0 atm at a constant volume of 1.0 m3 and then expands at constant pressure to a volume of 3.0 m3 before returning to its initial state. How much work is completed in one cycle?