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the coefficient of restitution of the impact is e = .5. determine how far B moves from its initial position as a result of the impact.
Determine the heat transfer rate in and out of the cycle. Make sure to draw a picmie indicating where the cycle is in relation to the thermal reservoir and your house. Draw the heat transfer in and
If electricity costs $0. 12 per kW hr, find the cost of the electricity in a year (assume 365 days) where the refrigeration cycle is operating 12% of the time.
A 1000kg car is moving horizontally at a constant speed of 10km/hr on a straight path. What is the absolute minimum energy needed to move this car horizontally 500 m?
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
Qualitatively plot the following processes on P-v, T-v, and P-T diagrams. Use an "arrow" sign pointing to the process direction.
Determine: (a) Temperature, quality, and the volume in m^3 of the final state. (b) Qualitatively plot the process on P-v and P-T diagrams.
Determine by trigonometry the tension in rope AC and the value of alpha so that the resultant force exerted at A is 1200-Ib force directed along the axis of the automobile.
Determine absolute numerical value of the steam and ice points on this scale b) the melting point of tungsten is 6191 f while the -452. If what do these values correspond to on the reaumur scale.
The force F of magnitude 800 N is to be resolved into two components along the lines a-a and b-b. Determine by trigonometry the angle alpha, knowing that the component of F along line b-b is 120 N.
Knowing that the tension in member B is 6kN and that the tension in C is 10 kN, determine graphically the magnitude and direction of the resultant force acting on the bracket.
Determine the pressure, in lbf/in^2, at an intermediate state where the volume is 2.1 ft^3 , sketch the process on a graph of pressure versus volume.
Determine the following: (a) pressure (psi) at each state (b) mass of vapor present at each state (kg) (c) Show states 1 and 2 on a T-v diagram (d) Show states 1 and 2 on a P-v diagram
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.