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A ball is thrown vertically downwards from a height of 20 m with an initial velocity v02. It collides with the ground, loses 50 percent of its energy in collision and rebounds to the same height. The initial velocity v0 is (Take g = 10 ms-2)
(A) 10 ms-1
(B) 14 ms-1
(C) 20 ms-1
(D) 28 ms-1
Two parallel circularrings of radius R=1 m have their centers on the x-axis separated bya distance of 2 m. What is the net electric field in the center of the right ring
Mitch is skydiving. He Jumps out of a plane and reaches a terminal velocity (constant velocity) of 20 m/s. When he is 1000 m above the ground, Skid, standing directly below Mitch, fires a rocket launcher at Mitch. The rocket has an initial velocit..
If you apply a 4 N force on a string wrapped around an object that has an inertia of 0.03 \mathrm{kg\:m}^2 , what is the angular acceleration you expect from the falling object
Draw or describe the free body diagram for the vehicle, showing all forces. Calculate these forces and list them with magnitude and direction
A particle with a charge of -1.85×10-8C is moving with an instantaneous velocity of magnitude 40.5km/s in the xy -plane at an angle of 50.5 degrees counterclockwise from the +x axis. What is the magnitude of the force exerted on this particle
A block of mass M is attached to a spring ofspring constant k and is moving with constant speed in a horizontalcircle on a frictionless table. You measure that the time it takesthe mass to make one complete circle is T seconds. One end of thesprin..
a frictionless pulley which can be modeled as a 0.80 solid cylinder with a 0.30 m radius has a rope going over it. The tension in the rope is 10 N on the right side and 12 N on the left side. What is the angular acceleration of the pulley.
two identical point charges q 9.20 x 10-6 c are fixed at opposite corners of a square whose sides have a length of
A revolving car wheels have a radius of 15 meter and a mass of 3 x 104 kilogram. Find what tangential force is located on the wheel to give it such torque
During launches, rockets often discard unneeded parts. What total distance did the canister travel between its release and its crash onto the launch pad
A bismuth target is struck by electrons, and x-rays are emitted, Estimate the M- to L-shell transitional energy for bismuth when an electron falls from the M shell to the L shell
What would some challenges and benefits be for community health nurses in providing care for different communities? For similar communities?
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