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rocket runs out of fuel in the position shown andcontinues in unpowered flight above the atmosphere.If its velocity in this position was 600 mi/hr, calculatethe maximum additional altitude h acquired andthe corresponding time t to reach it. The gravitationalacceleration during this phase of its flight is
water initially saturated vapor at 4 bar fills a closed rigid container. the water is heated until its temperature is
A 20-cm-diameter 4-m-long horizontal cylinder is released from rest under water. If it weighs 1500 N in air, what is its initial acceleration under water if the added mass is neglected? If the added mass is included?
1. It is desired that the reflectivity of light at normal incidence to the surface of a trans- parent medium be less than 5.0%. Which of the following materials in Table 21.1 are likely candidates: soda-lime glass, Pyrex glass, periclase, spinel,..
a pitot static tube records a static pressure of 5.20 psig and a difference between impact pressure and static pressure
the purification of hydrogen gas is possible by diffusion through a thin palladium sheet. calculate the number of
Determine the ratios P1 : P2 : P3 of the critical loads for these columns.
For a material with a tensile yield strength Y, determine the ratio of the mean stress o m = to Y at the point of yielding in a
It is assumed that a boundary layer begins to develop about 12 km from shore. If the wind speed averages 18 m=s, estimate the thickness of the boundary layer and the shear stress on the surface of the water near the shore.
A 0.2-m3 rigid tank contains 8 kg of water (in any phase or phases) at 500 kPa. What is the temperature in the tank? Consider a sealed can that is filled with refrigerant-134a at 20°C. Now a leak develops, and the pressure in the can drops to the loc..
Determine the transfer functions from input voltage to angular velocity and from load torque to angular velocity for a PM DC motor rigidly connected to an inertial load. Assume resistance and inductance parameters Ra , La let the armature constant be..
a frictionless piston-cylinder is filled with 3 liters of water at 250 kpa. initially the temperature of the water is
We have 0.25 lb of refrigerant 134a at 35 psi, and a quality of x=0.15. If it is expanded, in a constant pressure process, to two times it's original volume, determine the final temperature, and find the work of the constant process.
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