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A 100 kg scaffold is 5.8 m long. It is hanging with two wires, one from each end. A 480 kg box sits 1.4 m from the left end. What is the tension in the left hand side wire?(g = 9.8 m/s2)
Considering just the Sun and Jupiter, determine the radius of the circular orbit the Sun makes about the Sun-Jupiter center of mass
A conductor in the shape of a spherical shell of radii 2,5cm is charged to 20 microcoloumbs. How much work is required to move a 10 microcoloumb charge from the position (0.20) to the point (10,10)
A 50 kg box is being pushed a distance of 7.0 m across the floor by a force whose magnitude is 164 N. The force is parallel to the displacement of the box.
A world champion hammer thrower, rotates at a rate of 3.5 revolutions/sec just prior to releasing the hammer. What was the linear velocity of the hammer at release
The water molecule H2O, with a permanent dipole moment of magnitude of 6.2x10^-30 Cm, What force does the ion exert on the water molecule
A 220 g block hangs from a spring with spring constant 12 N/m. At t=0;{rm s} the block is 31cm below the equilibrium point and moving upward with a speed of 89.0 cm/s. What is the block's distance from equilibrium while the speed is 30 cm/s.
A thin square metal plate is 1.00 m on a side is located in the xz-plane. A charge of 400 nC is placed on the plate and can be taken to be distributed uniformly.
A 25.8-mW laser beam of diameter 1.99 mm is reflected at normal incidence by a perfectly reflecting mirror. Calculate the radiation pressure on the mirror
A 82 kg student sits on a chari which is soley supported by a solid 0.92 meter long steel rod 0.98 cm in diameter
The drawing shows a person looking at a building on top of which an antenna is mounted. The horizontal distance between the person's eyes and the building is 84.4 m. How tall is the antenna
When a quarterback throws a quick pass, he pushes on the ball with constant horizontal force for 0.10 sec, while his hand moves forward 0.80 m. find the work done on the ball by the quarter back
Estimate the kinetic energy of the Mars with respect to the Sun as the sum of the terms, that due to its daily rotation about its axis
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