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A 1-m^3 rigid tank has propane at 100 kPa, 300 K and connected by a valve to another tank of 0.5 m^3 with propane at 250 kPa, 400 K. The valve is opened, and the two tanks come to a uniform state at 325 K. What is the final pressure?
a 0.3 kg bullet is fired into a 3.6 kg wooden block and becomes embedded in it. knowing that the block and bullet move
a high pressure axial compressor for a jet engine rotates at 15000 rpm with an overall stagnation pressure ratio of
a 1500-kg car enter an s-curve at a with a speed of 96 kmh with brakes applied to reduce the speed to 72 kmh at a
a room that normally contains 40 people is to be air-conditioned with window air- conditioning units of 5-kw cooling
If an identical spring is cut so that one part is one-fourth and the other part three-fourths of the original length, and the mass m is connected to the two parts, what would be the natural period of the system?
in an ideal brayton cycle with regeneration air is compressed from 80 kpa and 10degc to 400 kpa and 180degc. it is then
a stone of 20 kg of mass is held 15 m above a tank containing 200 kg of water. the stone water and the air are at the
Assume you are given a spherical joint where the ball has a radius of 20 mm and socket has a radius of 22 mm. If the contact load is 50 N, E = 210 GPa, and ν = 0.3, determine (a) the radius of the contact area, (b) the maximum contact pressure.
a refrigeration system has a coefficient of performance of 5. the heat rejection is an isothermal process at 37c. what
consider the steel balls from 5.6 except now the air tempincreases with time as tinft325kat where a 0.1875ks.asketch
Water flows at a rate of 20 l/s through a horz pipe dia .03 m. The pressure drop across the valve in the pipe is measured to be 2 kPa. Determine the irreversible head loss of the valve, and the useful pumping power needed to overcome the resulting..
calculate the linear density of atoms along the 111 direction and the planar density of atoms in the 111 plane in bcc
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