A mover uses a pulley to lift a 2500N piano up to a second story balcony. The mover pauses to wipe sweat from his forehead while holding the rope tight in one hand. Since the piano is not moving at this time, what is the tension force in the rope while the piano is dangling still in the air?
Answers: 3
Physics, 21.06.2019 22:30
How many molecules are present in 3 mols of silicon dioxide (sio2)?
Answers: 1
Physics, 22.06.2019 05:30
The a992 steel rod bc has a diameter of 50 mm and is used as a strut to support the beam. determine the maximum intensity w of the uniform distributed load that can be applied to the beam without risk of causing the strut to buckle. take f.s. = 2 against bucklin
Answers: 3
Physics, 22.06.2019 11:50
Two resistors r1 and r2 may be connected either in series or parallel across an ideal battery with emf ε. we desire the rate of energy dissipation of the parallel combination to be 8.75 times that of the series combination. if r1 = 105 ω, what are the (a) smaller and (b) larger of the two values of r2 that result in that dissipation rate?
Answers: 2
Physics, 22.06.2019 17:40
Aball is thrown horizontally from a cliff at 8m/s .in what direction is the ball moving 2s later?
Answers: 1
A mover uses a pulley to lift a 2500N piano up to a second story balcony. The mover pauses to wipe s...
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