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A 100Kg pure Iron block at 27 degrees C is dropped into an insulated, rigid tank that contains 0.1m3 of unused engine oil (density of oil = 868.8 kg/m3 ) at 77 degrees C. Find the temperature, in K, when thermal equilibrium is achieved.
explain the difference between the information given by a test of statistical significance such as chi square and a
estimate the rate of heat loss due to radiation from a covered pot water 95 c .how does this compare with the 60 w lost
a rocket is launched at an angle of 50.0deg above the horizontal with an initial speed of 101 ms. the rocket moves for
a genetic experiment involving peas yielded one sample of offspring consisting of 414 green peas and 153 yellow peas.
would it be a possible to use a normal domestic refrigerator as a heat source for a small hot tub or whirlpool? if so
assume that a simple random sample has been selected from a normally distributed population and test the given claim.
a coffee cup calorimeter containing 100 ml of h2o is used. the initial temeperature of the calorimeter is 23c. if 2.40
two stationary positive point charges charge 1 of magnitude 3.00 and charge 2 of magnitude 2.00 are separated by a
completion time from start to finish of a building remodeling project is normally distributed with a mean of 200
a boy pushes a 3.1 kg. book against a vertical wall with a horizontal force of 40 n. what is the minimum coefficient of
in all but a very few vehicles today crush or crumple zones are employed as a method to reduce energy transfer to the
a mechanical engineer who recently graduated with a masters degree is contemplating starting his own commercial heating
the length of the mercury column at the ice point and steam point are 5.0 cm and 40.0cm respectively. when the
determine the energy loss that will occur if water flows with a velocity of 7fts through a gate vlave fully open. what
air enters a compressor operating at steady state with a pressure of 1 bar a temperature of 20degc and a volumetric
a frictionless piston cylinder device contains 10kg of nitrogen initially at 200kpa and 27c. the nitrogen is now heated
a scuba divers 2 ft3 air tank is to be filled with air from a compressed air line at 120 psia and 100 degree f.
a no. 120 roller chain operates on a small sprocket of 12 teeth. calculate and plot the curves for horsepower vs. speed
An air compressor takes air from outdoors at 28deg C and 101.2kPa and compresses it to 790kPa and 50 deg C. The air input to the compressor is found to be 22.67m3/hr. Estimate the required Hp to operate the compressor.
Water is pumped from a lake at ambient pressure
ater enters a reversible steady-state device at 125degc and 400 kpa and leaves at 300degc and 200 kpa. heat is added
for a specimen under fatigue test with a maximum stress of 150 mpa tensile stress and a minimum stress of -20 mpa
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