How long does it take to go from state one to state two
A 20 ft3 tank contains air at 1 atm and 70F. A valve is opened and fresh air enters the tank at a constant mass flow rate of 1 lbm/min. After a while the pressure in the tank is 3 atm and 80F. How long does it take to go from state 1 to state 2?
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The system is then heated while the pressure is held constant until the volume doubles. Determine how much heat was added to the system.
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Electrical heater wires are installed in a solid wall having a thickness of 8 cm and conductivity 2.5 W/m*K. The right face of the wall is exposed to a convective environment of 75W/m^2*K and 50oC.
A valve is opened and fresh air enters the tank at a constant mass flow rate of 1 lbm/min. After a while the pressure in the tank is 3 atm and 80F. How long does it take to go from state 1 to state 2?
Assume that a procedure yields a binomial distrubition with a trial repeated n times. Use the binomial probability formula to find the probability of x successes given the probability p of success on a single trial.
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An airline has a policy of booking as many as 23 persons on an airplane that can seat only 22. Past studies have revealed that only 87% of the booked passengers actually arrive for the flight.
Assume that a procedure yields a binomial distrubition with n trials and the probability of success for one trial is p. Use the given values of n and p to find the mean and standard deviation. Also use the range rule of thumb to find the minimum u
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