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A 85 kilogram scaffold is 6.8 meter long. It is hanging with two wires, one from each end. A 520 kilogram box sits 1.6 meter from the left end. Determine the tension in the right hand side wire?(g = 9.8 m/s2)
A hollow, thin-walled cylinder and a solid sphere start from rest and roll without slipping down an inclined plane of length 3.0 m. find the angle between the inclined plane and the horizontal
A particle of charge +3.03 x 10-6 C is 10.2 cmdistant from a second particle of charge -1.85 x 10-6 C.Calculate the magnitude of the electrostatic force between the particles.
The weight of passengers on a roller coaster increases by 53% as the car goes through a dip with a 35m radius of curvature
The m1 = 1.4 kg block at rest on a horizontal frictionless surface is connected to an unstretched spring (k = 200 N/m) whose other end is fixed. (See Fig. 10-36.) The m2 = 2.5 kg block whose speed is 4.0 m/s collides with the 1.4 kg block. Assume tha..
You are 1.5 m tall and you are standing 2.0 m away from a flat mirror. The Top of the mirror is at the same level as the top of your head. How large is the mirror
An isolated copper sphere of radius 3.00cm, initially uncharged, is illuminated with ultraviolet light of wavelength 180nm. what charge does the photoelectric effect induce on the sphere
A solar cell generates a potential difference of 0.10 V when a450 resistor is connected across it, and a potential difference of 0.15 V when a1200 resistor is substituted.
two identical charges are fixed to diagonally opposite corners of a square 0.5m on the side. each charge is 3x10-9c how
A circular platform of radius Rp = 5.95 m and mass Mp = 359 kg rotates on frictionless air bearings about its vertical axis at 6.99 rpm. What is the angular velocity when the man reaches the edge of the platform
a helicopter starting from rest accelerates straight up from the roof of a hospital. the lifting force does work in
question1a 32 percent efficient electric power plant generates 700mw of electric power and discharges waste heat into
a square plate of copper with .5m sides has no net charge and is placed in a region of uniform electric field of 80.0
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