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1. Design a system that has no moving mechanical parts to cool machine shop compressed air at 0.500 MPa, 25.0°C to 0.00°C at 0.101 MPa. The outlet velocity must be at least 10.0 m/s. If possible, fabricate and test your design.
2. Design a small demonstration wind tunnel to be driven from a standard compressed air supply line at 100. psia and 70.0°F. Assume that the maximum volumetric air flow rate available from this supply is 10.0 ft3 /min at 14.7 psia and 70.0o F. The wind tunnel test section must be at least 1.00 inch in diameter and must reach a Mach number of at least 2.25.
The air may be exhausted to the atmosphere, but it first must be decelerated to subsonic velocity to minimize noise generation. If possible, fabricate and test your design.
A 52g firecracker is at rest at the origin when it explodes into three pieces. The first, with mass 15g , moves along the x axis at 42m/s in the positive direction. The second, with mass 15g , moves along the y axis at 34m/s in the positive direction..
Two lenses, one converging with a focal length of 20.0cm and one diverging with a focal length of -12.0cm, Find the final image from the second lens. Follow the sign conventions
a surveyor wishes to find the distance between 2 inaccessible points p and q on opposite sides of a lake. from point r
Calculate the average density of a red giant star in grams per cubic centimeter. Take the star's mass to be 2*10^33 gm and its radius to be 3*10^12 cm
Use the work-energy theorem to calculate the frictional force F and write down the expression for the angular acceleration with frictional force calculated in terms of m, L, h, and g.
a boy on a roof throws one ball downward and an identical ball upward. the ball thrown downward hits the ground with 100 J of kinetic energy. what is the kinetic energy of the second just before it hits the ground
Suppose you have a near-point distance of 16 cm. The angular resolution of the eye is determined by diffraction, What is the smallest object your bare eye can resolve
question1a diver 60 m deep in 10 celcius fresh water exhales a 0.5-cm-diameter bubble.what is bubbles diameter just as
A spaceship moves away from Earth at a speed 0.874c and fires a shuttle craft that then moves in a forward direction at 0.21c relative to the ship. The pilot of the shuttle launches a probe forward at a speed of 0.412c relative to the shuttle. Det..
You and a friend are out hiking across a large flat plain and decide to determine the height of a distant mountain peak, and alsothe horizontal distance from you to the peak. In order to do this,you stand in one spot and determine that the sightli..
A block of mass m = 2 kg is pushed against a spring of spring constant k = 30 N/m until the spring is compressed by x = 0.1 m. What is the maximum speed of the block
If you want the month of July's electric cost to stay below $100 over the month of July by remaining the indoor temperature at 70oF for 24 hours perday, what is the required refrigerant R-134a's mass flow rate? What is the corresponding compressor..
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