Physics, 25.01.2020 03:31 Heavengunn15
Auniversity campus has 200 classrooms and 400 faculty offices. the classrooms are equipped with 12 fluorescent tubes, each consuming 110 w, including the electricity used by the ballasts. the faculty offices, on average, have half as many tubes. the campus is open 240 days a year. the classrooms and faculty offices are not occupied for an average of 4 h a day, but the lights are kept on. if the unit cost of electricity is $0.115/kwh, determine how much the campus will save a year if the lights in the classrooms and faculty offices are turned off during unoccupied periods.
Answers: 3
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A17,250 kg rocket is pushed with a thrust of 6,450,284 n. what is the acceleration of the rocket?
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Asolid cylinder and a cylindrical shell have the same mass, same radius, and turn on frictionless, horizontal axles. the cylindrical shell has light-weight spokes connecting the shell to the axle. a rope is wrapped around each cylinder and tied to blocks of equal masses that are held the same height above the ground. both blocks are released simultaneously. the ropes do not slip. which block hits the ground first? or is it a tie?
Answers: 3
Auniversity campus has 200 classrooms and 400 faculty offices. the classrooms are equipped with 12 f...
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