A full 10,000-gallon water tank will be emptied using two pumps. Pump A working by itself is used to drain 30 percent of the tank total capacity, at which point Pump B is added to the job. If the entire job of emptying the tank takes 50 hours, and Pump A works at a rate of 100 gallons per hour, what is Pump B's rate, in gallons per hour?

What are the theoretical properties of a gas at a temperature of 0 kelvin?

A3.9 g aluminum foil ball with a charge of +4.1×10−9 c is suspended on a string in a uniform horizontal e⃗ field. the string deviates to the right and makes an angle of 30∘ with the vertical. part a part complete what information about the e⃗ field can you determine for this situation? what information about the field can you determine for this situation? only the magnitude of e⃗ only the direction of e⃗ both the magnitude and the direction of e⃗ none of the above previous answers correct part b determine the magnitude of the electric field. express your answer with the appropriate units. e e = nothing nothing request answer part c determine the direction of the electric field. determine the direction of the electric field. to the right to the left away from you toward you

2kg of refrigerant 134a undergoes a polytropic process in a piston-cylinder assembly from an initial state of saturated vapor at 2 bar to a final state of 12 bar, 80 degree c. a)determine the work for the process in kj. b)sketch the process on a p-v diagram.