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Two 0.8-lb balls are to be put successively into the center C of the slender 4-lb tube AB. Knowing that when the first ball is put into the tube the initial angular velocity of the tube is 8 rad/s and neglecting the effect of friction, determine the angular velocity of the tube just after
(a) the first ball has left the tube,
(b) the second ball has left the tube.
The inner sphere has radius 15.0 cm and the capacitance is 116 pF. If the potential difference between the two spheres is 220 V, illustrate what is the magnitude of charge on each sphere?
In a single slit diffraction pattern:
As is known that the wavelength of yellow light from mercury is 578nm. What is the energy of photoelectron when it leave the surface of photocathode
A dancer is standing on one leg on a drawbridge that is about to open. Before the drawbridge starts to open, it is perfectly level with the ground. The dancer is standing still on one leg.
During hand-pumped rail car races, a speed of 27.2 km/h has been achieved by teams of four people. How long is the time of fall of the rail car
A 75.0kg skier rides a 2830m long lift to the top of a mountain.The lift makes an angle of 14.6o with the horizontal. What is the change in the skier's gravitational potential energy
A 16 kg projectile is fired from a cannon off a cliff. As it moves through a parabolic trajectory it splits into 6kg and a 10 kg. How far away from the 6 kg piece does the 10 kg piece land
Compute the required time by the current to reach an initial value in an inductive discharge circuit.
A 2.00×104kg railroad car is rolling at 1.00m/swhen a 5000kg load of gravel is suddenly dropped in.What is the car's speed just after the gravel is loaded
An oscillating LC circuit consisting of a 2.0 nFcapacitor and a 3.8 mH coil has a maximum volatage of 6.0V. What is the maximum current through the circuit
suppose she starts at the top of the wave with a speed of 1.7 ms and moves down the wave until her speed increases to
A fancy lecture demo designed to gauge electric fields is shown in the figure above. A pith ball of mass 0.510 g and positive charge q = 42.6x10-6 C is suspended on a string of negligible mass in a uniform electric field. We observe that the ball han..
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