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Problem: A sphere of mass 68 kg is attached to one end of a rope. It is found that the rope does an amount of work W = 3100 J in pulling the sphere upward through a distance 4.6 m.
Part A: Find the work done by the force of gravity on the sphere.
Please show all work and steps to find the work done by the force of gravity on the sphere.
Assuming that air resistance is simply a constant 95 N force on the person during the fall, evalute the person’s velocity just before hitting the net.
The magnetic field due to a 2-A current flowing in a long, straight wire is 8 %u03BCT at a point P, a certain distanceaway from the wire
A puck of mass m = 1.26 kg slidesin a circle of radius r = 25.0 cmon a frictionless table while attached to a hanging cylinder ofmass M = 2.04 kg by a cordthrough a hole in the table. What speed keeps the cylinder atrest
two identical loudspeakers connected to a single audio amplifier are 5.0 m apart. the speakers at what spatial period does the intensity vary
The active element of a certain laser is an ordinary glass rod18.0 cm long and 1.21 cm in diameter. If the temperature of the rodincreases by 70.5oC, Calculate its increase in diameter
a bird stands on a dc electric transmission line carrying 2900 a. the line has 2.6times10-5 resistance per meter and
A proton and an electron have the same kinetic energy upon entering a region of constant magnetic field. What is the ratio of the radii of their circular paths
Two horizontal forces, 218 N and 157 N, are exerted in opposite directions on a crate. What is the net horizontal force on the create? Be sure to indicate the direction of the net force. (Assume that the 218 N forces are in the positive direction.)
Water moves through a constricted pipe in steady, ideal flow. At the lower point the pressure is 1.73 105 Pa and the pipe radius is 2.80 cm. Find the speed of flow in the lower section
A spherical drop of water carrying a charge of 11 pC has a potential of 590 V at its surface (with V = 0 at infinity). What is the radius of the drop
The Youngs Modulus for copper is 130 Gpa. What is the strain in the the copper wire under a stress of 120Mpa
The period of rotation of the Moon is about 27 days, 8 hrs. The mass of the Moon is 7.35 x 1022 kg, and the radius of the Moon is 1.74 x 106 m. Find the height of the satellite above the Moon's surface
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