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What is the Carnot efficiency for this additional cycle? Assuming the actual device has an efficiency of half of the Carnot efficiency, how much additional electric power would be generated?
Knowing that the car stops in 300 ft, determine (a) how fast the car was traveling immediately before the brakes were applied, (b) the time required for the car to stop.
10 C at the top and bottom surfaces respectively. if the concrete has a thermal conductivity of 1.4 W/mK what is the rate of heat loss through the slab?
How much will the E85 fuel have to cost (per gallon) to make the flex-fueled car as economically attractive as conventional gasoline-fueled car?
Now the valve is opened, and the entire system is allowed to reach equilibrium with the surroundings, which are at 20oC. Determine the volume of the second tank and the final equilibrium pressure of
Calculate: a) The power out of the turbine, b) The isentropic efficiency, c) Show the process on a T-s diagram for both the actual and isentropic processes with respect to the constant pressure line
What would be the final temperature of 1 m3 of atmosphere from each of these planets if 1000 J of energy from the sun was absorbed.
Determine the change in temeprature, the change in internal energy, the work, and heat transfer. Assume air behaves as an ideal gas with constant specific heats of cp = 1. 020kJ/kg-K and cv = 0. 742
Is the average run length performance of a control chart a more meaningful measure of performance than the type I and type II error probabilities?
Determine (a) the speed of the car in terms of b, theta, and dot theta, (b) the magnitude of the acceleration in terms of b, theta.
What angle? With the horizontal should the pilot's line of sight to the target make at the instant of release? The airplane is flying horizontally at an altitude of 100 m with a velocity of 200 km/h
Determine the velocity v of the particle at t=3.67s and the angle theta between the average acceleration vector and the velocity vector at t=3.67 s.
Calculate the reaction force in each of supports A and B. Calculate the moment of the force exerted by the crate around support A and the moment of the force around support B.
Determine the velocity from the faucets on the 2nd and 3rd floors if each floor is 11 ft tall, each faucet is located 3.5 ft above the floor. The water tower is elevated 3 ft above the roof and it i
Use your equation to calculate the pressure (in mb) at 1200 m above the ground (assume surface temperature = 15 degree C and surface pressure = 1000 mb).
Calculate the heat emitted to the environment (Btu/sec), the coal feed rate (tons/day), the degree (%) of sulfur dioxide control needed to meet an emission standard of 0.15 lb SO2/million Btu of hea
Moist air at 30 degrees C, 2 bar, and 50% relative humidity enters a heat exchanger operating at steady state with a mass flow rate of 600 kg/h ans is cooled at constant pressure to 20 degrees C.
Some hypothetical metal has the simple cubic crystal structure (i.e., atoms positioned at each of the eight corners with atoms touching one another along cube edges).
For a metal that has the simple cubic crystal structure, calculate the atomic radius if the metal has a density of 8.38 g/cm3 and an atomic weight of 57.62 g/mol.
For this crystal structure: (a) How many atoms are associated with each unit cell? (b) What is the coordination number? (c) What is the atomic packing factor?
A 1000 N force is applied in the beam length (x) direction, a 100 N force is applied in the y direction, and a force of 100 N is applied in the z direction. Calculate the Von-Mises stress at the cla
Calculate the radius of an silver atom in cm, given that Ag has an FCC crystal structure, a density of 10.5 g/cm3, and an atomic weight of 107.87 g/mol.
Find the sum of two harmonic motions of equal amplitude but of slightly different frequencies. Plot the resulting motion of the mass(you may use any software available to you). Determine the beat freq
An accelerometer indicates that part of a machine element is vibrating harmonically at 82cps with a maximum acceleration of 50 g. Determine the amplitude of the vibration.
Natural gas at 70 F and standard atmospheric pressure of 14.7 psi is compressed isentropically to a new absolute pressure of 70 psi. Determine the final density and temperature of the gas.