Calculate power required to maintain heater surface
An electric heater in the form of a horizontal disk of 57 mm diameter is used to heat the bottom of a tank filled with engine oil at a temperature of 5 degrees celcius. Calculate he power required to maintain the heater surface at 70 degrees C.
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A spherical drop of water carrying a charge of 20 pC has a potential of 530 V at its surface (with V = 0 at infinity). (a) What is the radius of the drop?
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An electric heater in the form of a horizontal disk of 57 mm diameter is used to heat the bottom of a tank filled with engine oil at a temperature of 5 degrees celcius.
The mean age at which men in the United States marry for the first time follows the normal distribution with a mean of 24.6 years. The standard deviation of the distribution is 2.6 years.
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What are the key differences between incompressible subsonic flow, compressible subsonic flow, transonic flow, and supersonic flow, and what are the approximate boundaries of these regimes?
Steam enters a two-stage adiabatic turbine at 8 MPa and 550ºC (State 1) and is expanded to 2 MPa. Calculate the mass flow rate (kg/s) through the two-stage turbine.
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