On a winter day heat leaks out of a house at the rate of
On a winter day heat leaks out of a house at the rate of 2.5x10^4 kcal/h. The temperature inside the house is 21 d celsius and the temperature outside is -5 d celsius. At what rate does this process produce entropy?
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In some economies relative supply may be unresponsive to changes in prices. For example, if factors of production were completely immobile between sectors, the production possibility
The force from road drag is 2.5 N and the aerodynamic drag (in Newtons) is equal to 0.2v2 N where the units on 0.2 are N s2/m2 and where v is in m/s. Neglecting drive train losses what is the average power output of the cyclist
A uniform circular metal disk has radius 36 cm and mass 350 g and its center is at the origin. Then a circular hole of radius 9 cm is cut out of it. What is the total linear acceleration of a piece metal at the disk's outer edge
calculate the amount of heat in joules (q) required to affect this temperature change and the total change in internal energy, ?U. Note that some books use ?E as the symbol for internal energy instead of ?U.
On a winter day heat leaks out of a house at the rate of 2.5x10^4 kcal/h. At what rate does this process produce entropy
The volume of the system is doubled from 1 m^3 to 2 m^3 while 200 kJ of heat is added to the system. If no work is done except for the boundary displacement work and the pressure remains constant at 101.3 kPa (1 atm) throughout the process,
Calculate the concentrations of total acetate ion for the 7 solutions below, prepared by mixing the specified volumes of .75 M acetic acid with .75 M sodium acetate
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The electrical power supplied to the motor is 90 kW. The motor in turn delivers 100 hp at a speed of 1000 rpm to a hoist arrangement for an elevator. Define the electric motor as the system and calculate the rate of work for the system.
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