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1. A meteorite melts and burns up at a temperature of 3000 K. If it hits air at 5 kPa, 50 K, how high a velocity should it have to experience such a temperature?
2. Air leaves a compressor in a pipe with a stagnation temperature and pressure of 150?C, 300 kPa, and a velocity of 125 m/s. The pipe has a cross-sectional area of 0.02 m2. Determine the static temperature and pressure and the mass flow rate.
The vertical reactions a supports A and B for the feame are 13 kip and 37 kip, respectively. Determine the magnitude of the forces F1 and F2. Also, determine the horizontal reaction at A.
Given that the average power plant produces 667 MW of electricity per year, there are 492 coal plants in the US, and a solar constant of 1.361 KW/m^2, how large of an area would one need to cover with solar cells to replace our dependence on coal ..
The buses are run by independent drivers, however, who make no attempt to coordinate their schedules. Actually, one bus runs slightly faster than the other so that over many trips the fraction of trips that the second bus leaves within a time t
A four-wheel tractor whose operating weight is 47,877 lb is pulled up a road whose slope is +3.5% at a uniform speed. If the average tension in the towing cable is 4,860lb, what is the rolling resistance of the road?
Constructing the foundation causes changes in the levels of vertical stress at all points in the soil. One such point lies at the centre of the footing plan and is at a depth of 10m. Determine the increment of vertical stress there.
The student strikes the sign at a speed of 25 mi/h. if the student was travelling at 65 mi/h when the sign was first spotted, what was the student's associated perception reaction time
Consider a 2D triangular element with the three vertices at 1[1,1], 2[1,2] and 3[2,2]. the displacements at these t hree points are [0.1,0.1], [0.3,0.2] and [0.4, 0.3] mm for point 1,2,and 3 respectively
Calculate the maximum weight of the heavy machine that can be rolled along the ramp upstairs - Using Yield Line analysis
A wet sand sample has a volume of 4.63 * 10^-4 m^3 and weighs 8 N. After oven-drying, the weight reduces to 7.5 N. Calculate the water content, void ration, and degree of saturation.
a ballon weighing 3.5 lb is 6 ft in diameter. if filled with hydrogen at 18 psia and 60 degrees F and released, at what U.S standard altitud will it be neutral
A small nitrogen container is at Pressure P1 = 5 bar and T1 = 300 K. It's been filled from a larger nitrogen container, which is P= 10 bar and T = 300 K.
Using the data available in Appendix B, determine the slope of the line when the plate is subjected to a 45-kip centric axial load.
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