Physics, 12.03.2021 14:00 zovav1oszg9z
The steel wire working a signal is 750 m long and 0.5 cm diameter. Assuming a pull on the
wire of 1.5 kN, find the movement which must be given to the signal-box end of the wire if
the movement at the signal end is to be 17.5 cm. Take Young’s modulus as 200 GN/m2
Answers: 3
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Aparticle moves in the xy plane with constant acceleration. at time zero, the particle is at x = 6 m, y = 8.5 m, and has velocity ~vo = (9 m/s) ˆı + (−2.5 m/s) ˆ . the acceleration is given by ~a = (4.5 m/s 2 ) ˆı + (3 m/s 2 ) ˆ . what is the x component of velocity after 3.5 s? answer in units of m/s.
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Aboy with a mass 25 kg climbs into a small tree. he sits on a branch that is 2.o m above to the ground.what is his gravitational potential energy above the ground?
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The steel wire working a signal is 750 m long and 0.5 cm diameter. Assuming a pull on the
wire of 1...
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