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A tool locker having a mass of 140 kg rests on a wooden pallet. Assuming a coefficient of static friction of 0.38, determine the horizontal force that would cause sliding motion to impend.
air enters the compressor of an ideal brayton refrigeration cycle at 120 kpa and 275 k. the compressor pressure ratio
the 150lb car of an amusement park ride is connected to a rotating telescopic boom.a when r 17ft the car is moving on
For what range of mass flow rates will the LN2 have a bulk temperature rise of less than 1.5 K over the length of the channel - At your minimum flow rate, estimate the maximum wall temperature in the channel.
A steam power plant operates on the ideal reheat Rankine cycle. Steam enters the high pressure turbine at 6 MPa and 4000C and leaves at 2 MPa. Steam is then reheated at constant pressure to 4000C before it expands to 20 kPa in the low pressure turbin..
Give the API mode 1 frame $42 will receive from its Xbee module.
a completely reversible refrigeration cycle removes heat at a rate of 100kw from an industrial refrigerator maintained
1. In ionic materials, how does the size of the component ions affect the extent of elec- tronic polarization? 2. Can a material have an index of refraction less than unity? Why or why not?
consider airflow past a sphere of diameter 5 cm. the incoming air velocity is 100 ms. the air density and temperature
A piston cylinder device contains 3 kg of air at 300 kPa and 25°C. During a quasiequilibrium isothermal expansion process, 20 kJ of boundary work is done by the system, and 8 kJ of paddlewheel work is done on the system. The heat transfer during th..
Rigid steel tank with a volume of 1 m3 contains 2 kg of H2O initially at 400 kPa. Determine the initial temperature of the H2O
What is the extraction mass fraction, the heat rate, and the thermal efficiency? The turbine efficiency is 89%. Neglect pump work
air enters the compressor of an air-standard brayton cycle at 100kpa 300k with a volumetric flow rate of 5m3s. the
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