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A 31.0-kg child on a 1.00-m-long swing is released from rest when the ropes of the swing make an angle of 30.0° with the vertical.
(a) Neglecting friction, find the child's speed at the lowest position.Incorrect: Your answer is incorrect.Your response differs from the correct answer by more than 10%. Double check your calculations. m/s(b) If the actual speed of the child at the lowest position is 1.40 m/s, what is the mechanical energy lost due to friction?J
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An unstable particle with a mass equal to 3.34x10^-27 kg is initially at rest. Find the masses of the fragments
You do 220 J of work pulling your sister back on a swing, whose chain is 5.00 m long, until the swing makes an angle of 30.0 degrees with the vertical, What is your sisters mass
A 50kg diver in a full layout position, with a total body radius of gyration with respect the her transverse principal axis equal to 0.45m, What is the diver's angular velocity
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A plastic cylinder of length 27cm its ends ground to convex (from the rod outward) spherical surfaces, each having radius of curvature18cm. A small object is placed12cm from the left end. How far will the image of the object lie from the right end..
A ball of mass 0.240 grams and positive charge, q =39.3 microC, is suspended on a string of negligible mass in a uniform electric field. We observe that ball hangs at an angle of theta =15.0 o from the vertical. What is the magnitude of electric f..
Concept Simulation 3.2 reviews the concepts that are important in this problem. How much time does the ball spend in the air
q1. two 12-cm-diameter charged rings face each other 17.0 apart. both rings are charged to 40.0. what is the electric
Speedboat A negotiates a curve whose radius is 150m. Speedboat B negotiates the curve whose radius is 190m. Each boat experiences the same centripetal acceleration. What is the ratio vA/vB of the speeds of boats.
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