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What are some of the basic terms to know in physics when becoming a mechanical engineer?
for steel cp 135 jkg-k a 4.5x10-6 ok density 7.85 gcm3 e 207 gpaa. a 1 m long steel rod 10 cm in diameter is heated
A shell-and-tube heat exchanger is used to cool a flow of steam using a stream of cooling water. The steam enters the heat exchanger at 0.1 bar and a quality of 91% (state 1), and exits as a saturated liquid at the same pressure (state 2). The mass f..
a rigid copper tank initially containing 1 m3 of air at 295 k carrying air at 295 k 15 bar is connected by a valve to a
An inventor claims to have devised a refrigeration cycle operating between hot and cold reservoirs at 300 K and 250 K, respectively, that removes an amount of energyQC by heat transfer from the cold reservoir that is a multiple of the net work inpu..
draw the free-body diagram and write the corresponding elemental equation for a spring element with the following
a gas turbine engine has a pressure ratio of 9.2 to 1 and operates on an ideal brayton cycle. assume air enters at 25 c
Jet fuel and air with stoich mix on a 10000 altitude with pressure of 20000 Pa and temp -50 Celsius and laminar flame Calculate: flame thickness
an ideal gas carnot cycle with air in a piston cylinder has a high temperature of 1200 k and a heat rejection at 400 k.
A composite wall consists of a 1 mm-thick stainless steel plate (AISI 316), 2 cm of plywood, and 2 cm of low-density particle board. The stainless steel surface is maintained at 380 K while the other side loses heat to ambient air at 300 K, with conv..
Consider an ideal air-standard Otto cycle starting at 9 psia, 42 deg F, with a compression ratio of 12, and a specific heat addition of 240 Btu/lbm. Calculate the thermal efficiency, peak temperature, specific work output, and the temperature at the ..
A sprue is 12 inches long and has a diameter of 5 inches at the top, where the metal is poured. The molten metal level in the pouring basin is taken as 3 inches from the top of the sprue for design purposes. If a flow rate of 40 in3/s is to be achiev..
a man hits a 50g golf ball such that it leaves the tee at an angle of 40 degrees with the horizontal and strikes the
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