The specific heat capacity of water is 4180 J/kg x C. How much heat energy is required to raise the temperature of 5 kg of water by 1 degree
Celsius? *

Two balls, each with a mass of 0.5 kg, collide on a pool table. is the law of conservation of momentum satisfied in the collision? explain why or why not

Aresistor with an unknown resistance is connected in parallel to a 9 ω resistor. when both resistors are connected in parallel to an emf source of 21 v, the current through the unknown resistor is measured with an ammeter to be 4 a. what is the resistance of the unknown resistor? answer in units of ω.

How much energy is supplied to each coulomb of charge that flows through a 12-v battery?