You’ve probably seen how the surface of a tire can partially melt and leave a mark on the road when a car’s brakes are applied really hard. Explain why the surface of the tire melts.

How many times did thomas edison mess up the light bulb

An insulated 40 ft^3 rigid tank contains air at 50 psia and 120°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.

Aforce is a vector quantity because it has both?