What is the power in watts of the heat engine
There are 200 students riding bikes each producing 110W of heat out put which is used for a heat engine which has an efficiency of 44.1% runing between 30c and -5c. what is the power in watts the heat engine.
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Three resistors are connected in series across a 15-V power supply. If the potential drop across resistors 1 and 2 are 4.1 volts and 3.1 volts, what is the potential drop (in volts) across resistor 3?
Use the work-energy theorem to calculate the mass of the piece of fruit in grams. (The acceleration due to gravity is 9.81 m/s2.)
A student is standing at the edge of a rotating circular platform of mass 200kg and radius 1.1 m. The student of mass 70 kg walks slowly toward the center of the platform. If angular velocity of the system is 2 rad/s initially, what is the angular
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A convergent lens has a focal length of 7cm. A 2cm tall image forms 30cm from the lens. (a) How far is the magnification?
A glass window pane has an area of 3.00m^2 and a thickness of 0.600cm. If the temperature difference between its faces is 25.0C, what rate is the rate of energy transfer by conduction through the window?
If it is used as the dielectric material in a parallel-plate capacitor, what minimum area should the plates of the capacitor have to obtain a capacitance of 6.10 x 10-2 µF and to ensure that the capacitor will be able to withstand a potential
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