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It is proposed to heat a home using a heat pump. The rate of heat transfer from the house to the environment is 15 kW. The home is to be maintained at 20 C. The outside air is at -20 C. Determine the minimum power (kW) required to drive the heat pump. (show all units in calculations)
water flows in a long electrical heated tube with q constant . the velocity and temperature profiles are fully
water flows near a flat surface and soe measurments of the water velocity u parallel to the surface at different
in an experiment similar to the procedure set out for part a of the calorimetry experiment 1.500 g of mgs was combined
one mole of an ideal gas at t 25 degc is held in a cylinder by a piston at a pressure of 1 x 107 n m-2. the piston
air at 120 kpa and 260 k is compressed steadily to 575 kpa and 405 k. the mass flow rate of air through the compressor
the atmosphere on maris is comprised of mostly carbon dioxide at a pressure of 600 pa that is not a mistake it is in
a machine component is made of 2024-t4 aluminum. the external loads produce highest operating principle stresses that
a solid shaft of 30mm diameter is to be used determine the maximum torque that can be applied without exceeding an
a straight duct with a radius of 40 cm contains a fan that is operating at steady state. the fan draws air from the
Helium enters subsonically and flows isentropically through the converging-diverging duct. Compare the values of Ma, T/T0, and P/P0 for helium with those for air at several locations in the duct. Use 0.163 ≤ Ma ≤ 3.221.
Consider just the vertical (y) response of the system when the beam is being stretched. Show that the spring constant, ka, is approximately 70.6 mN/m. What is the steady state amplitude of the vertical response? See Figure A below for an engine..
suppose the professor on gilligans island needs to measure temperature and happened to find enough iron and constantan
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