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A proposed solar collector installation has a frontal area (exposed to the sun) of 50.0 m2 and combines a thermoelectric generator with the air heating system of a building. The thermoelectric generator produces dc power with an efficiency of 5.00%. Solar radiation provides a net heat transfer rate to the absorber plate of 1000. W/m2. The incoming air is at 18.0°C, and to obtain “good” operating efficiency, the exit air temperature must be maintained at 30.0°C. (Helpful Hint/Note: The solar generator power output depends on heat transfer rate, area exposed to the sun, and its efficiency. Use the MERB equation and note no work transport occurs)
A spherical brass shell has an interior volume of 1.33 x 10-3 m3. Within this interior volume is a solid steel ball that have a volume of 0.77 x 10-3 m3. what is the volume of mercury that spills out of the hole
Assume L1 = 0.844 m and L2 = 0.401 m. Calculate the normal force exerted by the floor on each hand
A 2200 kg sport utility vehicle travelling at 86 km/h can be stopped in 0.15 s if it hits a concrete wall. Presume a 60 kg person was in the car that hit this wall. The velocity of the person equals that of car both before and after the crash, and..
question1the follow statement is true or false?the electric field epoint at the center of an induced dipole because of
A barefoot field-goal kicker imparts a speed of 49 m/s to a football initially at rest. find the force exerted by the ball on the kicker's foot
A very small charged block with a mass of 2.10 g is placed on an insulated, frictionless plane inclined at an angle of 17.0° with respect to the horizontal, What is the sign and magnitude of the charge on the block
Illustrate what elements of the marketplace in which Mega Tech operates led the organization to believe that project management would improve its operations?
In reaching her destination, a backpacker walks with an average velocity of 1.37 m/s, due west. How far east did she walk
A coin placed 29.0 cm from the center of a rotating, horizontal turntable slips when its speed is 50.2 cm/s, What is the coefficient of static friction between coin and turntable
A 650 kg elevator starts from rest. It moves upward for 4.50 s with constant acceleration until it reaches its cruising speed, 1.75 m/s. What is the average power of the elevator motor during this period
The pressure at the surface of the water will be 140kPa , and the depth of the water will be 13.8m . The pressure of the air in the building outside the tank will be 87.0kPa
A 1kg of ice at -30° C is added to 10 kg of steam at 500°C. What is the final phase of the system of ice + steam if no heat escaped from it
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