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A puck on a frictionless, horizontal air table is attached to a string that passes down through a hole in the table. Initially the puck moves at 12 cm/s in a circle of radius 24 cm. If the string is pulled through the hole, reducing the radius of the puck's circular motion to 18 cm, what is the new speed of the puck?
What is the minimum rate of rotation, in revolutions per minute, required for the spheres to contact the cylinder wall?
Compute the average acceleration of car and lizard and the final velocity of a Ferrari.
Two identical particles, both of mass m and charge q, What is the speed of each particle when they are a distance 2d apart
Two circular disks spaced 0.50mm apart form a parallel-plate capacitor. What are the diameters of the disks
A 5.5kg block is initially at rest on a frictionless horizontal surface. It is pulled with constant horizontal force of 3.8 newtons. How far does it move in this time
if a 50 ohm toaster is connected in parallel to two 120 W bulbs and 120 V is applied across the light bulbs/toaster combination what is the current flowing through the toaster
Write a nuclear reaction for the neutron-induced fission of U-235 to produce Te-137 and Zr-87 How many neutrons are produced in the reaction
Suppose that the displacement of an object is related to time according to the expression x = Bt2. What are the dimensions of B?
Two parallel straight wires are 10 cm apart carry currents in opposite directions. Determine the magnitude and direction of the magnetic field halfway between the wires
A point source of light illuminates an aperture 1.96 m away. How wide is the aperture
Suppose that a high-energy particle accelerator accelerates an electron to such great speed that its relativistic mass becomes as large as the rest mass of a proton. Calculate the speed of this electron
Suppose the emf of a coil rotating in a magnetic field is zero at t = 0 , and increases to its first peak at t = 0.08 ms. What is the period of the output
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