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A scaffold of mass 43 kg and length 6.5 m is supported in a horizontal position by a vertical cable at each end. A window washer of mass 68 kg stands at a point 2.0 m from one end. What is the tension in
(a) the nearer (relative to the person) cable and
(b) the farther (relative to the person) cable?
An electric dipole has opposite charges of 6.35*10^-15 C seperated by a distance of 0.29mm, Determine magnitude of the torque exerted on the dipole by the electric field.
The plates of a parallel-plate capacitor are 3.00mm apart, and each carries a charge of magnitude 77.0nC. The plates are in vacuum. What is the area of each plate
Having taken a nap under a tree only 20 m from the finish line, Rabbit wakes up to find Turtle 19.5 m beyond him, grinding along at 1/4 m/s. How many seconds will he win or lose by
A beam of thermal neutrons emerges from a nuclear reactor and is incident on a crystal. Find the Bragg- scattering angle that results in a scattered beam of this energy
A professor's office door is 0.90 wide, 2.00 high, 4.00 thick; has a mass of 30, and pivots on frictionless hinges. A "door closer" is attached to door and the top of the door frame. When the door is open and at rest, the door closer exerts the torqu..
Find out the magnitude of the vertical component of the velocity
After the collision, the 0.177 kg puck has a speed of 1.38 m/s at an angle of 27? to the positive x axis. Examine the velocity of the 0.302 kg puck after the collision.
Suppose that the spring is ideal and that the distance by which the spring is compressed is negligible compared to H.
An energy storage system based on a flywheel (a rotating disk) can store a maximum of 3.2 MJ, What is the moment of inertia of the flywheel
A 5.8kg box is on a frictionless 40%u2218 slope and is connected via a massless string over a massless, What is the tension in the string once the box begins to move
Methane (CH4) is burned with the 20% dry excess air at 227C. Combustion occurs at one atmosphere. Determine the adiabatic flame temperature (C)
A rope 2.0-m-long has a mass of 0.100 kg. The tension is 65 N. calculate the frequency of the oscillator
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