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A 2 kilogram ball is attached to the end of a 2.5 meter string to form a pendulum. This pendulum is released from rest with the string horizontal. The ball, at the lowest point in its swing when it is moving horizontally, collides inelastically with a 2 kilogram block initially at rest on a horizontal, frictionless surface. Determine the speed of the ball-block system just after the collision?
Consider a system of two particles of reduced mass μ that interact according to the force F= -kr3 , where is the distance among them. Write down the potential for the force, and effective potential for the system. What is the rotation period for this..
Tasha has mass 20kg and wants to use a 4.0m board of mass 10kgas a seesaw. How far is she from the support point
object o stands on the central axis of a concave spherical mirror at a distance of 40 cm. the distance between the
A solid spherical conductor of radius 15 cm has a charge Q = 6.5 nC on it. How much charge is there on the second sphere after the two spheres have been separated
A man stands on a platform that is rotating (without friction) with an angular speed of 0.361 rev/s; his arms are outstretched, what is the resulting angular speed of the platform
A 525-? resistor, an uncharged 1.50-µF capacitor, and a battery with an emf of 6.31 V are connected in series, What is the current after one time constant
four equal positive point charges each of charge -14 c are at the corners of a square of side 12cm.what charge should
An archer pulls her bowstring back 0.388 m by exerting a force that increases uniformly from zero to 229 N. What is the equivalent spring constant of the bow
70 grams of water at 85°C are mixed with an equal amount of water at 15°C in a completely insulated container. How much heat is gained by the cold water
A fully charged capacitor with a voltage of 120 V is discharged through a resistor. What is the voltage across the capacitor at the end of five time constants
A 20 kg child is on the swing that hangs from a rope 3.5 m long. What is her speed at the bottom of her arc if she swings to out 90 degrees.
A uniform electric field has a magnitude 330 N/C and is directed along the +y-axis. what is the change in potential energy for this charge
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