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CarA starts from rest at t= 0 and travels along a straight road with a constant acceleration of 6 ft/s^2 until it reaches a speed of 80 ft/s . Afterwards it maintains this speed. Also, when t= 0, carB located 6000 ft down the road is traveling towards at a constant speed of 60 ft/s. Determine the distance traveled by car A when they pass each other?
compare air and helium as cooling media for electronic devices. both fluids must exit through an area of 0.025 m2. the
Steam enters a diffuser at 20 psia and 240oF with a velocity of 900 ft/s and exits as saturated vapor at 240oF and 100 ft/s. The exit area of the diffuser is 1 ft2. Determine (a) the mass flow rate of steam and (b) the rate of entropy generation.
a 5 cm layer of insulation with thermal conductivity of 0.06 wm.c is placed between two plates of 100 and 200 degrees
an actual refrigerator absorbs 500 kj of heat from a sink at 250 k and reject 660 kj of heat to environment at 300 k.
a factory has a large liquid propane storage tank. the propane is to be used as vapor. evaporation of the liquid
a plane wall with surface temperature 350c is attached with straight rectangular fins k 235 wm k. the fins are exposed
the basis of a design project which will be completed. you should therefore think carefully about which of the
a beer distributor incurs a penalty cost of 2.00 per case of shortage and 1.00 charge per case left over in inventory
a tennis ball is struck from a height of 7.5 ft. it strikes the smooth ground at a distance of 20 ft away and bounces
on a cold winters day it is 30degf outside. yet the temperature of the outside surface of the mechanical engineering
Explain the first law of thermodynamics using the conversion of a fuel (gasoline or diesel) in an internal combustion engine. Provide sufficient details (sentences and illustration) to explain the first law.
in a certain industrial dryer 4 kgh of water is to be removed from a moist material. the drying is accomplished by
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