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Q. Two window washers, Bob and Joe, are on a 3.00 m long, 310 N scaffold supported by two cables attached to its ends. Bob weighs 755 N and stands 1.00 m from the left end. Two meters from the left end is 500 N washing equipment? Joe is 0.500 m from the right end and weighs 920-N. Given that the scaffold is in rotational and translational equilibrium, what are the forces on each cable?
What is the current in amperes in a wire of radius. The parallel plates in a capacitor, with a plate area of 8.70 cm2 and an air-filled separation of 3.30 mm, are charged by a 8.90 V battery.
Two crates, of mass 75.0 kg and 109 kg, are in contact and at rest on a horizontal surface. A 732 N force is exerted on the 75.0 kg crate. What is the force the each crate exerts on the other.
Each surface exerts a force on the bottle that is perpendicular to the surface. What is the magnitude of each of these forces.
A box with a mass of 8 kg is lifted (without acceleration) through a height of 9 m, in order to place it upon the shelf of the closet.
What is Horizontal angle of projectile
How far from the dog would the suitcase land? You can ignore air resistance.
An electric vehicle starts from rest and accelerates at a rate of 2 m/s2 in a straight line until it reaches a speed of 25.00 m/s. The vehicle then slows at a constant rate of 1.1 m/s2 until it stops. (1) How much time elapses from start to stop? ..
One average force F1 has a magnitude that is three times as large as that of another force F2. Both forces produce the similar impulse. The average force F1 acts for a time interval of 1.77ms. for what time interval does the average force F2 act.
A candle is placed 16.0 cm in front of a convex mirror. When the convex mirror is replaced with a plane mirror, the image moves 7.5 cm farther away from the mirror. Find out the focal length of the convex mirror.
An elastic cord is 65 cm long while a weight of 56 N hangs from it and is 82 cm long while a weight of 84 N hangs from it. What is the spring constant of this elastic cord.
A professor's office door is 0.95 wide, 2.2 high, 4 thick; has a mass of 22 , and pivots on frictionless hinges. A "door closer" is attached to door and the top of door frame. When the door is open and at rest, the door closer exerts a torque of 5..
when released from rest from this spot, the particle arrives at B with twice the speed it previously had, or 2vB. Find out the potential at B.
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