Physics, 17.10.2019 17:00 nananunu2747
Askier is pulled by a tow rope up a frictionless ski slope that makes an angle of 7.6° with the horizontal. the rope moves parallel to the slope with a constant speed of 1.2 m/s. the force of the rope does 960 j of work on the skier as the skier moves a distance of 7.9 m up the incline. (a) if the rope moved with a constant speed of 2.7 m/s, how much work would the force of the rope do on the skier as the skier moved a distance of 7.9 m up the incline? at what rate is the force of the rope doing work on the skier when the rope moves with a speed of (b) 1.2 m/s and (c) 2.7 m/s?
Answers: 3
Physics, 22.06.2019 05:30, trevorhenyan51
Suppose you have three polarizing filters, with the second at an angle of 42∘ to the first and the third at an angle of 90∘ to the first. by what perfect will the original intensity of unpolarized light be reduced to after passing through all three filters?
Answers: 2
Physics, 22.06.2019 06:00, ayoismeisalex
Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?
Answers: 1
Askier is pulled by a tow rope up a frictionless ski slope that makes an angle of 7.6° with the hori...
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