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A small blob of putty of mass m=12 g falls from the ceiling and lands on the outer rim of a turntable of radius R= 20 cm and moment of inertia I0= 5 kg.m2 that is rotating freely with angular speed ?0 = 100 rev/s about its vertical fixed-symmetry axis. What is the post-collision angular speed of the turntable-putty system?
A viewing window in the Atlanta aquarium is 51 inches wide and 54 inches high. what is the outward force on the window
When the coil of a motor is rotating at maximum speed, the current in the windings is 4.33 A. When the motor is first turned on, calculate the resistance of the windings.
An Olympic runner is at the starting gate and hears the starting gun, Using only acceleration, ai, and time, tr, write an expression for the runner's final speed, vr, when he crosses the finish line
In a certain experiment, a radio transmitter emits sinusoidal electromagnetic waves of frequency 105.0 in opposite directions inside a narrow cavity with reflectors at both ends, How far apart are the nodal planes of the magnetic field
An object is solid throughout. When the object is completely submerged in ethyl alcohol, its apparent weight is 15.8 N. What is the volume of the object
When a liquid and its vapor are in equilibrium, the rates of evaporation of the liquid and condensation of the vapor are equal. Compute the rate of evaporation of mercury into a vacuum
A proton is projected perpendicularly into a magnetic field that has a magnitude of 0.30 T. The field is then adjusted so that an electron will follow a circular path of the similar radius when it is projected perpendicularly into the field with t..
A small plastic ball with a mass of 6.50 x 10?3 kg and a charge of +0.15uC is suspended from an insulating thread, What is the magnitude of the charge on each plate
What is the speed of the 2 cars as they move together after the collision.
An infinitely long line of charge has linear charge density 5.00 x10-12 C/m. A proton (mass 1.67 x10-27 kg, charge +1.60 x10-19 C) is 18 cm from the line and moving directly toward the line at 1.50 x103 m/s. How close does the proton get to the li..
A student uses an audio oscillator of adjustable frequency to measure the depth of a water well. how many antinodes are in the standing wave
The current in a coil drops from 3.1 A to 2.6 A in 0.53 s. If the average emf induced in the coil is 12 mV, what is the self-inductance of the coil
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