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A 36%-efficient electric power plant produces 900 MW of electric power and discharges waste heat into 20^\circC ocean water. Suppose the waste heat could be utilized to heat homes during the winter instead of being discharged into the ocean. A typical American house requires an average 20 kW for heating.
How many homes could be heated by the waste heat of this one power plant?
A firm wants to determine the amount of frictional torque in their current line of grindstones, so they can redesign them to be more energy efficient. What is the angular acceleration of the grindstone
A swimmer runs horizontally off a diving board with a speed of 3.44m/s and hits the water a horizontal distance of 1.74m from the end of the board. How high above the water was the diving board
A logic circuit has two 2-bit unsigned binary numbers X[1:0] and Y[1:0] as the inputs and it has two 1-bit outputs. One of the outputs is ONE_GTR and the other is X1_XOR_Y1.
A note of frequency 700 Hz. has an intensity of 5.0E-06 W/m^2. What is the amplitude (in meters) of the air vibrations caused by this sound
The 40 kg man in the roller coaster car is sitting on a bathroom scale. If he is travelling at 35.3 m/s at the point shown and the radius of vertical coaster track is 53 meters, to the nearest newton what does the scale read?
An organ tube is open at one end. A certain harmonic produced by the tube has a frequency of 450 Hz. The next higher harmonic has a frequency of 750 Hz. The speed of sound in air is 343 m/s. i. What is the integer n that describes the harmonic whose ..
Assume that the only force acting on him throughout the collision is that as a result of the ground.
A damped mass-spring system oscillates at 265 -Hz. The time constant of the system is 2.0 s. At t = 0, the amplitude of oscillation is 6.1 cm and the energy of the oscillating system is then 61.00 J.
A 83.0-mH inductor and a 5.90-μF capacitor are connected inseries with a generator whose frequency is 449 Hz. The rms voltageacross the capacitor is 3.70 V. Determine the rms voltage across the inductor.
Suppose now that the apparatus is sealed, and the temperature rises to 56.4o C. Find the pressure inside the apparatus now
The impact on light fixture swing
What will be the acceleration of three of these objects glued together if they are pulled by two rubber bands
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