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Muriel
Questions and answers by
Muriel
Questions (3)
skier of mass 79 kg is pulled up a slope by a motor-driven cable.
(a) How much work is required to pull him 80 m up a 30° slope
4 answers
3,470 views
When a 2.00-kg object is hung vertically on a certain light spring described by Hooke's law, the spring stretches 3.17 cm.
(a)
1 answer
1,126 views
A 1.50 ✕ 103-kg car starts from rest and accelerates uniformly to 19.3 m/s in 11.7 s. Assume that air resistance remains
1 answer
723 views
Answers (3)
I can calculate it I need help please
The length of a telescope has a radius of 1 meter what is the len's circumference use 3.14 for
skier of mass 79 kg is pulled up a slope by a motor-driven cable. (a) How much work is required to pull him 80 m up a 30° slope (assumed frictionless) at a constant speed of 3.4 m/s? 1 J (b) What power (expressed in hp) must a motor have to perform this
