5. A current of 3.00 A flows through a resistor when it is connected to a 12.0-V battery. What is the resistance of the resistor? (5F)
a. 2.4Ω
b. 36 Ω
C. 432
d. 0.3 Ω

Apulley system is used to lift a 2,000 newton engine up a distance of 3 meters. the operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. to lift the engine 3 meters, the operator must pull a total of 30 meters of chain through the pulley system. what is the value of di?

Select for each of the following statements whether it is correct or incorrect. (a) in an isothermal expansion of an ideal gas. (b) the temperature remains constant. (b) the pressure remains constant. (c) there is work done by the gas. (d) there is heat added to the gas. (e) the change in internal energy equals zero.

Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of