Physics, 17.12.2019 18:31, zabomoxx5ll
Aprofessor's office door is 0.91 m wide, 2.0 m high, and 4.0 cm thick; has a mass of 25 kg; and pivots on frictionless hinges. a "door closer" is attached to the door and the top of the door frame so that the door can close on its own after being opened. when the door is open and at rest, the door closer exerts a torque of 5.2 nm. what is the least force that you need to apply to the door to hold it open (in newtons)?
Answers: 3
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What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?
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Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?
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Physics, 22.06.2019 15:30, tiffuuu
At 20βc, the hole in an aluminum ring is 2.800 cm in diameter. you need to slip this ring over a steel shaft that has a room-temperature diameter of 2.804 cm . 1. to what common temperature should the ring and the shaft be heated so that the ring will just fit onto the shaft? coefficients of linear thermal expansion of steel and aluminum are 12Γ10β6 kβ1 and23Γ10β6 kβ1 respectively.
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Physics, 22.06.2019 16:00, jayelijah0508
What is friction? how does it affect the motion of an object?
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Aprofessor's office door is 0.91 m wide, 2.0 m high, and 4.0 cm thick; has a mass of 25 kg; and pi...
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