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A 120 gram ball on a 75 centimeter long string is swung in a vertical circle above a point 220 above the floor. The string suddenly breaks when it is parallel to the ground and the ball is moving upward. The ball reaches a height 800 centimeter above the floor. Evaluate the tension in the string an instant before it broke?
A 2.0 kg block starts from rest on the positive x axis 3.0 m from the origin and thereafter has an acceleration given by a = 4.0 i -3.0 j in m/s2. At the end of 2.0 s its angular momentum about the origin is?
A metal sphere is suspended by a silk thread and charged positively. If in carrying a positive charge of 5.0E-8 C, what is the potential difference between the ground and the sphere
find the force necessary to start the crate moving given that the mass of the crate is 32 and the coefficient of static
A bowling ball encounters a 0.760 m vertical rise on the way back to the ball rack, Find the translational speed at the top
An object, of mass m = 3 kg, is released from a height h = 5 m of the top of a rough 45 incline, Determine the maximum height on the left incline that the object will reach before sliding back again to the right
A particle moves from an initial position with coordinates x = -2.0 m, y = +3.0 m, What is the magnitude of the average velocity for this displacement
A soldier has a huge contraption that notches a large 4 kg arrow (it looks more like a lance) in a massive bow and uses a winch system to draw the arrow back to set the bow. What is the speed of the arrow
The kinetic energy of a proton is 80% of its total energy. What is the momentum in kg·m/s of the proton?
In a game of basketball, a forward makes a bounce pass to the center. What horizontal distance does the ball cover before bouncing
a slide projector needs to create a 84 cm high image of a 2.0 cm tall slide. the screen is 240 cm from the slide.
Two blocks rest on a horizontal frictionless surface. (top block weighs xkg, the bottom box weighs 10kg). what is the mass of the top box
in an electrically heated home the temperature of the ground in contact with a concrete basement wall is 12.0 oc. the
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