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Two window washers, Bob and Joe, are on a 3.00 m long, 405 N scaffold supported by two cables attached to its ends. Bob weighs 720 N and stands 1.00 m from the left end, as shown in Figure P8.70. Two meters from the left end is the 500 N washing equipment. Joe is 0.500 m from the right end and weighs 870 N. Given that the scaffold is in rotational and translational equilibrium, what are the forces on each cable?
5 moles of a monatomic gas has its pressure increased from 105 Pa to 1.5*105 Pa. calculate How much work is done by the gas
The string in a yo-yo is wound around an axle of radius 0.547 cm. The yo-yo has both rotational and translational motion, like a rolling object, and has mass 0.344 kg and outer radius 1.99 cm. Starting from rest, it rotates and falls a distance of 1...
A ball rolls down a board which is 20 degrees to the horizontal. This time there is a coefficient of kinetic friction of 0.1. What is its speed at the bottom of the board
A 9.0-g piece of Styrofoam carries a net charge of -.65mC, What is the charge per unit area on the plastic sheet
At the instant of the figure, a 5.80 kg particle P has a position vector of magnitude 5.40 m and angle ?1 = 50.0° and a velocity vector of magnitude 1.10 m/s and angle ?2 = 30.0°. what are the magnitude of the torque acting on the particle
many masons base the cost for a job on the number of blocks the number of blocks they need to lay. doyel masonry
An air conditioner draws 14 A at 220-V ac. The connecting cord is copper wire with a diameter of 1.758 mm. how much power does the air conditioner draw
The current in an RL circuit builds up to one-third of its steady state value in 3.80 s. Find the inductive time constant
A ten pound car wheel has a moment of inertia of 0.3 kg m2. How much torque is required to stop the wheel
Consider the swimmer in the figure below. Suppose that his swimming speed relative to the water is 5.7 m/s, current = 2.6 m/s, How long will it take for him to cross the river
A particle with a charge of -60.0 nC is placed at the center of a nonconducting spherical shell of inner radius 19 cm and outer radius 31.0 cm. What is the total amount of charge on the nonconducting shell
A uniform 1.3-kg rod that is 0.86 m long is suspended at rest from the ceiling by two springs, one at each end. Find the angle that the rod makes with the horizontal
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