An Air Conditioner: Refrigerator or Heat Pump?

Please do not place your response in a .pdf or .cdx format, but Word documents are okay. Thanks! Please see attached for actual problem.

The Carnot Icemaker

Please do not place your response in a .pdf or .cdx format, but Word documents are okay. Thanks! Here's the actual problem: An ice-making machine inside a refrigerator operates in a Carnot cycle. It takes heat from liquid water at 0.0 degrees Celsius and rejects heat to a room at a temperature of 26.0 degrees Celsius. Supp ...continues

Problem 18.38

Please do not place your response in a .pdf or .cdx format, but Word documents are okay. Thanks! Here's the actual problem: Uranium has two naturally occuring isotopes. 238U has a natural abunchance of 99.3% and 235U has an abundance of 0.7%. It is the rarer 235U that is needed for nuclear reactors. The isotopes are separa ...continues

Problem 18.36

Please do not place your response in a .pdf or .cdx format, but Word documents are okay. Thanks! Here's the actual problem: Interstellar space, far from any stars, is filled with a very low density of hydrogen atoms (H, not H_2). The number density is about 1 atom/cm^3 and the temperature is about 3K. A & B) Estimate th ...continues

Problem 19.54

Please do not place your response in a .pdf or .cdx format, but Word documents are okay. Thanks! What is the power output of the engine? Please see attached for actual problem.

Determine the temperature of the gas at different points

A heat engine using 130 mg of helium as the working substance follows the cycle show in the figures (attached). Please do not place your response in a .pdf or .cdx format, but Word documents are okay. Thanks! Please see attached for actual problem.

Problem 19.62

Please do not place your response in a .pdf or .cdx format, but Word documents are okay. Thanks! Here's the actual problem: A heat engine using 3.30 grams of helium gas is initially at STP. The gas goes through the following closed cycle: -Isothermal compression until the volume is halved. -Isobaric expansion until the v ...continues

The Bermuda Triangle

Please do not place your response in a .pdf or .cdx format, but Word documents are okay. Thanks! Here's the actual problem: A cylinder with initial volume V contains a sample of gas at pressure p. The gas is heated in such a way that its pressure is directly proportional to its volume. After the gas reaches the volume 3V a ...continues

Harmonic Oscillator Equations

A block of mass m is attached to a spring whose spring constant is k. The other end of the spring is fixed so that when the spring is unstretched, the mass is located at x=0 ... (see attached) Please do not place your response in a .pdf or .cdx format, but Word documents are okay. Thanks! Please see attached for actual pr ...continues

Energy of Harmonic Oscillators

Systems in simple harmonic motion, or harmonic oscillators, obey the law of conservation of energy just like all other systems do. Using energy considerations, one can analyze many aspects of motion of the oscillator. Such an analysis can be simplified if one assumes that mechanical energy is not dissipated. In other words... (s ...continues