If the elongation of wire BCBC is 0.25 after the force PP is applied, determine the magnitude of PP. The wire is A-36 steel and has a diameter of 3 .

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

Which statement is true? a. kepler's laws apply only to the motion of earth. b. kepler's laws can be used to predict eclipses. c. kepler's laws are true for a central force that is directly proportional to distance. d. kepler's laws can be deduced from newton's laws of motion and gravity.

Oxygen undergoes an isentropic expansion from 120 degree c and 280 kpa absolute to 140 kpa absolute. determine the final temperature of the oxygen and the amount of work per kg of o_2 produced in the process if it is adiabatic.