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A total pressure probe like the one shown in Video V3.8 is inserted into a supersonic airflow. A shock wave forms just upstream of the impact hole. The probe measures a total pressure of 500 kPa(abs). The stagnation temperature at the probe head is 500 K. The static pressure upstream of the shock is measured with a wall tap to be 100 kPa(abs). From these data, estimate the Mach number and velocity of the flow.
A hammer head H having a weight of 0.31 lb is moving vertically downward at 40ft/s when it strides the head of a nail with negligible mass and drives it into a block of wood. find the impulse on the nail if it is assumed that the grip at A is loose, ..
a rigid container of volume v 01 m3 contains 1 kg of water. initially the system is at a temperature of t1 30c.a what
What is the heat loss per unit length of pipe? Consider the effect of insulating the pipe with a rigid urethane foam (k = 0.026 W/m · K). Evaluate and plot the heat loss as a function of the thickness 8 of the insulation layer for 0 8 50 mm.
The inner pipe of a double-pipe heat exchanger has an OD of 1.9 in. and contains 36 rectangular fins of the type shown in the sketch below. The fins are made of steel (k=34.9 Btu/h ? ft ? ?F) and are 0.5 in. high and 0.035-in. thick.
The muffler acts as a resistor with a loss coefficient of KL= 8.5. Determine the pressure at the beginning of the exhaust system if the flowrate is 0.10 cfs, the temperature is 250 °F, and the exhaust has the same properties as air.
How does DN differ qualitatively from the volume mean diameter Dv
Give the advantages and drawbacks of metal matrix composites over polymer matrix composites.
Determine the probable production in cubic yard bank measure (bcy) for a 2-cy dragline when excavating and casting good common earth.
Concrete has a density of 2500 kg/m3 and a compressive strength of 30 MPa. What is the maximum height of a column of concrete that can support its own weight? Does the radius of the column matter?
What mechanisms of diffusion play the most important role in the solid-state sintering of ceramics?
let us consider a solar powered water heater. the solar collector surface is coated with black chrome whose emissivity
boat a and boat b leave from point o the origin at the same time. boat a is traveling at 20 fts 30 degrees west of
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