Two rams run toward each other. one ram has a mass of 50 kg and runs west
with a speed of 8 m/s, while the other has a mass of 40 kg and runs east with
a speed of 5 m/s. what is the total momentum of the system made up of the
two rams?

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?

This energy transformation diagram represents the energy of a skateboarder moving along a half-pipe. as she skates toward the top of the half-pipe, her original kinetic energy is converted to potential energy and friction. how much of the energy is potential?

Estimate the change in the gibbs energy and molar gibbs energy of 1.0dm3 of octane when the pressure acting on it is increased from 1.0 atm to 100 atm. the mass density of octane is 0.703 g cm−3