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An electrically-driven pump operating at steady state draws water from a pond at a pressure of 1 bar and a rate of 40 kg/s and delivers the water at a pressure of 4 bar. Evaluating electricity at 8 percents per kW/h estimate the hourly cost of running the pump
a a rigid tank containing 20 kg of refrigerant 134a as saturated vapor at 1.0 bars and -26.43 c is heated until the
block a is dropping at a velocity of 600mmsec and acceleration of 100mmsec2. it is attached directly to an inner
A rock is thrown straight down from the top of a cliff overlooking a canyon with an initial velocity 60 ft/sec and it hits the bottom of the canyon in 9 seconds. Determine the height from which the rock was thrown
question 1. which of the following would be used for the highest temperature measurements ?thermistorthermocoupleic
particle a of mass ma 1.0 kg is at the edge of a table with height 1.0 m. it is connected to a particle b of mass mb
As a game, slide a matchbook across a table, trying to make it stop at some predefined point on each attempt. Measure the distance from the starting point to the stopping point. Repeat this 10, 20, through 50 times. Plot the frequency distribution fr..
fabricating metal parts by drilling holes in the metal can cause the parts to get quit hot. what will be the change in
steam at 2 kg s enters a turbine at 6000 kpa and 600 c and exits as saturated vapor at 20 kpa. the turbine produces
One-half kilogram of water executes a Carnot power cycle. During the isothermal expansion, the water is heated until it is a saturated vapor from an initial state where the pressure is 1.5 MPa and the quality is 25%. The vapor then expands adiabatica..
a paddle wheel is inserted in a 0.6 m3 rigid well-insulated tank which is filled with 2 kg of air. the paddle wheel
air is used as the working fluid in a simple ideal brayton cycle that has a pressure ratio of 12 acompressor inlet
r-134a at 800 kpa and 100 c enters an adiabatic nozzle steadily with a velocity of 20ms and leaves as sat-v at 400 kpa.
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