Sir Dudley the Dextrous is loading cannons on top of the castle\'s tallest towers in preparation for an expected attack. He slips, and a 18.0 kg cannonball rolls to the edge of the tower (which has a perfectly horizontal surface), and falls to the ground below. It takes the cannonball 2.15 seconds to fall to the ground, and air resistence is negligible. How much work is done by gravity on the falling cannonball?JDuring the fall, what is the average power transfer to the cannonball due to the force of gravity?W
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Physics, 22.06.2019 12:50, starr3971
Air is contained in a variable-load piston-cylinder device equipped with a paddle wheel. initially, air is at 400 kpa and 17°c. the paddle wheel is now turned by an external electric motor until 75 kj/kg of work has been transferred to air. during this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. calculate the required amount of heat transfer in kj/kg.
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Physics, 22.06.2019 14:20, yourgirlmaya
The energy released by a nuclear fusion reaction is produced when
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Physics, 23.06.2019 02:50, raekwonpowell10
Orque can be calculated by multiplying the force (n) applied at 90∘ to the lever arm at a distance (m) from the pivot point (point of rotation), the compound si unit for the torque is n⋅m. if the force (at 90∘ to the lever arm) applied is 15 n and it is applied at 2.0 m from the pivot point (point of rotation), what is the torque on the lever?
Answers: 2
Sir Dudley the Dextrous is loading cannons on top of the castle\'s tallest towers in preparation for...
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