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Solve the given problem:
Problem: An 8.6-kg box is being lifted by means of a light rope that is threaded through a single, light, frictionless pulley that is attached to the ceiling.
Part A: If the box is lifted, at a constant speed of 2.0 m/s, from rest on a floor to a height of 1.3m above the floor in 0.42s, what average power is delivered by the person pulling on the rope in kW?
I need help to compute what average power is delivered by the person.
Two metal balls A and B of negligible radius, connected by a taut nonconducting thread of length 2.40 m, are floating at rest on Space Station Freedom between two metal bulkheads. Ball A carries charge q, and ball B carries charge 2q.
whose first two components are the polar coordinates of the horizontal displacement between the planes, and whose third coordinate is the vertical displacement between the planes. Consider east to be the positive x axis and north to be the positiv..
A proton is projected in the positive x direction into a region of uniform electric field = (-5.20E5) N/C at t = 0. The proton travels 6.20 cm as it comes to rest, Determine the initial speed of the proton
A VW Beetle goes from 0 to 65.7 mi/h with an acceleration of +2.34 m/s^2. Find the acceleration of the dragster
Calculate Brewster's angle for light incident from diamond into air if the glass has an index of 2.409. Unpolarized light is incident on a series of two Polaroid sheets. The intensity of the light emerging from the second sheet is 27.7% of the intens..
A planet of mass m = 8.15 Ã? 1024 kg is orbiting in a circular path a star of mass M = 6.05 Ã? 1029 kg. What is the orbital period (in earth days) of the planet Tplanet
questionrefrigerant is flowing while a frac34 inch o.d. copper tube under conditions such that its mixed temperature is
Find out ratio of the detector
An object of mass m1 = 4.00 kg is tied to an object of mass m2 = 3.90 kg with String 1 of length = 0.500 m. What is the tension in String 1 at this instant
A thin, uniformly charged spherical shell has a potential of 533 V on its surface. Outside the sphere, at a radial distance of 24.0 cm from this surface, Calculate the radius of the sphere
When you take your 1300 kg car out, you go around a corner ofradius 59 m with speed of 16 m/s. what is the force exerted by static friction
It takes 27 days for the moon to orbit the earth in a nearly circular orbit of radius 3.80 x 105 kilometer. Determine the earth mass and compare with the value given inside the back cover of the book
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