A horizontal cylinder of section so is divided in two compartments A and B of volume Vo by an adiabatic vertical wall, as shown in the Figure. The lateral surfaces of the cylinder are adiabatic and the vertical wall can slide without friction in the horizontal direction. The base of compartment B is in contact with a thermal source at temperature To. The base of compartment A is an adiabatic piston that can move without friction. The base of compartment B and the vertical wall are connected by an ideal spring. Each compartment is filled with n moles of an ideal diatomic gas at temperature To. At time t=0 the spring is in its rest position and the gas in each compartment is in thermodynamic equilibrium. All the quantities mentioned so far are assumed to be known. Starting from time t=0, a very slowly increasing force F is gradually applied to the piston. Atmospheric pressure can

An electric hot water heater consumes 3.1 kilowatts of electricity and converts it to heat. How long will it take the water heater to heat a 67 gallon tank of water from 10 degrees Celsius to 50 degrees Celsius? (1 kilogram of water is 0.37 gallons, 1 Calorie = 4200 J).  It may be helpful to refer back to the weekly handout for guidance on this problem. Your final answer should be in minutes (rounded to the nearest 10 minutes).

3. Please calculate the annual electricity production of a wind farm with 20 turbines. The annual mean wind speed is 7 m/s and diameter of the blades is 20 m. If we assume power consumption of a person is 3,000 kWh, about how many people will this energy support? Annual electricity production (KWh) = K Vm³ At T Where: - - - K = 3.2 (factor based on turbine performance) Vm= annual mean wind speed (m/s) At = swept area of turbine (m2) T = number of turbines Suitable for medium- to large-scale wind turbines (> 200 m2 swept area)

NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. A steam power plant receives heat from a furnace at a rate of 280 GJ/h. Heat losses to the surrounding air from the steam as it passes through the pipes and other components are estimated to be about 8 GJ/h. The waste heat is transferred to the cooling water at a rate of 170 GJ/h. Problem 06.017.a - Net power output of steam power plant Determine the net power output. (You must provide an answer before moving to the next part.) The net power output is MW.