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The outisde tempature drops to -2.7 celsius. Determine the minimum power required (kW) to drive the heat pump unit for this outside temperature.
If a student is selected at random, find the probability. That a person takes all three subjects given that he or she enrolled in chemistry.
At what distance downstream of the leading edge that corresponds to the critical Reynolds Number? What is the shear stress on the plate at this point?
The lift coefficient at this speed is 0.45 and the drag coefficient is 0.065. The mass of the aircraft is 900 kg. Calculate the lift area for the craft, and the requried engine thrust and power.
A sphere of diameter 100 mm, rotating at a rate of 286 rpm, is situated in a stream of water (15 degree C) that has a velocity of 1.5 m/s. Determine the lift force (in Newtons) of the rotating sphe
What is most nearly the amount of work done to overcome friction to slide the block a distance of 20 meters across this surface.
What is the probability that there are anywhere from 2 to 4 (inclusive) that do not have a useful life of at least 800 hours in a batch?
A constant moment of m= -120 N.m is applied for 10 seconds what is the most nearly the final angular velocity of the cylinder?
If height of the ramp is 3 m what is the most nearly the linear velocity of the cylinder when it reaches the bottom of the ramp?
What is the mass moment of inertia about an axis parallel to the axis passing through the body's center of mass with a distance d= 3m between these two axis?
A motorcycle moves with a constant speed of v=25 m/s around a curved track radius r= 800m. What is the magnitude and the direction of motorcycles acceleration?
What is the net force exerted on a vertical 18C rectangular plate, that is 3m tall, 5m wide, and whose top edge is 2m below the surface of water at 10 deg c?
A pressized tank contains a fluid with a dinsity of 900 kg/m^3. What is the velocity of fluid passing thiory of the opening?
Determine what kind of drive is best ,and to select suitable components .The driven equipment requires 60hp and should turn fairly close to 90 rpm.
The stern winch takes in the towing cable at the rate of 2 ft/sec. Calculate the reduced speed v of the tug during this interval. Assume the tow cable to be horizontal.
Saturated R-12 enters the compressor at a temperture of -10 C and exits as superheated vapour with a temperature of 90 C and a pressure of 1000 kPa. Determine the temperature maintained by the warme
The desiggn calls for air entering the dehumidifier to be 90 degree F. and 65% humidity ,and leaving air to be at 70 degr.F, and 30% humidity. Calculate the rate of heat removal required.
Estimate the value of the average heat transfer coefficient over the entire collector tube surface for each of the three cases.
The plank CDE has a mass m=15kg and is rest on a small pivot at D. Assume a perfectly plastic impact between block and the plank, determine the velocity of block A after the impact.
During the construction of a highway by-pass, earthmoving equipment costing $40,000 was purchased for use in transporting fill from the borrow pit. Determine the units-of-production depreciation sch
After 7 years of use the bulldozer should have a salvage value of $15000. What depreciation is allowed for this asset in year 5 for sum-of-the-years' -digits (SOYD) depreciation.
Determine the power (kW) for the compressor if the inlet volumetric flow rate is 0.125 m3/s and the heat transfer through the shell of the compressor to the surroundings is 2.02 kW.
Calculate the flow velocity and the gauge pressure in such a pipe on the top floor. There is no branch pipe and ignore viscosity.
A thin walled cylindrical pressure vessel has an outer diameter of 7.50 in and wall thickness of 0.250 in with an internal pressure vessel of 425psi the von mesis equivalent stress will be most nea
A flow of 30.5 kg/min of water from a hot water tank at 51oC is mixed with a 29.1 kg/min flow of 20oC water. Determine the final temperature (oC) of the mixed water stream.