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A man holds a pail of water by the handle and whirls it around avertical circle of radius 0.84 m at constant speed. What is theminimum speed that the pail must have at the top of its circularmotion if the water is not to spill out of the upside-downpail?
A flat slab of styrofoam, with a density of 32 kg/m3, floats on a lake. What minimum volume must the slab have
For a long solenoid, the magnetic field strength within the solenoid is given by the equation where t is time in seconds. find the radius of the solenoid
A rifle with a weight of 30 N fires a 5.0-g bullet with a speed of 300 m/s. If a 700-N man holds the rifle firmly against his shoulder, find the recoil speed of the man and rifle
A rifle bullet with a mass of 5.00g strikes and embeds itself in a block with a mass of 1.995kg that rests on a frictionless horizontal surface and is attached to a coil spring. What is the initial speed of the bullet
The plates of a parallel-plate capacitor are 2.50mm apart, and each carries a charge of magnitude 85.0nC. What is the potential difference between the plates
A 0.29 micro farad capacitor is connected across an AC generator that produces a peak voltage of 10.4 V. What is the peak current through the capacitor
A farsighted man uses eyeglasses with a refractive power of 1.90 diopters. Wearing the glasses 0.03 m from his eyes, What is the correct contact lens prescription, in diopters
Suppose your waffle iron is rated at 0.85 kW when connected to a 2.10 102 V source. What current does the waffle iron carry
A father racing his son has three-fifths the kinetic energy of the son, who has half the mass of the father. What is the original speed of the son
q1. a beam of light strikes a sheet of glass at an angle of 57.0circ with the normal in air. you observe that red light
Two cars collide at an intersection. Car A, with a mass of 2000 kg , is going from west to east, while car B, of mass 1400 kg , is going from north to south at 17.0m/s. As a result of this collision, the two cars become enmeshed and move as one af..
An old-style TV set places 25 kV across two plates of a parallel plate capacitor. An electron is released very close to one plate, compute the speed of the electron when it exits the hole
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