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A pressure washer available to home owners lists 1300 psi and 2 gpm among its specifications. We know, however, that the actual pressure of the water is atmospheric (0 gage) once it exits the nozzle. The key feature of the so-called pressure washer then is actually the velocity with which it exits the nozzle. Neglecting any losses, what would be the velocity of the stream from this machine if it achieves the specified flow rate through an outlet nozzle having a diameter of 0.062 in?
a steel plate is to be attached to a support with three bolts. the plate is 50 mm wide and 11.2 mm thick and the yield
An moles of an ideal gas A and (1-n) moles of an ideal gas B, each at 1 atm, are mixed at total constant pressure. What ratio of A to B in the mixture maximizes the decrease in the Gibbs free energy of the system? If decreases in the Gibbs free energ..
Use the policy iteration method to determine an optimal stationary policy.
a rigid insulated container has two rooms seperated by a membrane. room a contains 1 kg air at 200 degrees celsius and
A heat pump system is being designed to maintain a temperature of 25 0C when it is 0 0C outside. Assuming the heat transfer from the walls and roof is 4,000 MJ, determine the minimum theoretical net work input required if the cold reservoir was a) th..
Design a cam to move a follower at a constant velocity of 100 mm/sec for 2 sec and then return to its starting position with a total cycle time of 3 sec. Hint: Use a two-segment polynomial to describe the follower displacement.
a 2-kw pump is used to pump kerosene rho 0.820 kgl from a tank on the ground to another tank 30 m above the ground.
a simple slide valve with outside admission provides a lead of 3 mm a maximum port opening of 18 mm and a cut-off at 62
Label all chip numbers (but not pin numbers). Specify the =12,-12, and +5 power supply connections, resistor values, and capacitor values. Offset null potentiometers are not required.
Three return steam lines in a chemical processing plant enter a collection tank operating at steady state at 1 bar. Steam enters inlet 1 with flow rate of 0.8 kg/s at 200 C. Steam enters inlet 3 with flow rate of 1.2 kg/s at 95 C. Steam exits the tan..
What is the temperature of the shield? Is it reasonable to neglect natural convection inside and radiation outside? [Tshield = 153?C.]
If the fluid originates from a large tank with nearly zero velocity and flows vertically downward for its 2-m length, estimate the magnitudes of kinetic and potential energy changes. Assume the blood's properties are similar to those of water
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