A Passenger car (m = 10.0 kg) and a flat car (m = 7.5 kg) collide and stick together. The passenger car was initially traveling at 3.5 m/s and the flat car was initially traveling at a velocity of 2.2 m/s.

If a refrigerator is a heat pump that follows the first law of thermodynamics, how much heat was removed from food inside of the refrigerator if it released 380j of energy to the room?

In a stagnant pool of water, a crayfish may spend much of its time lying with one side of its carapace near the surface of the water. in this position, it will move the walking legs on that side in a rhythmic back-and-forth motion. explain the likely function of this behavior.

J. j. thomson’s experiment disproved the theory that an atom