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An insulated spherical conductor of radius r1 carries a charge Q. A second conducting sphere of radius r2 and initially uncharged is then connected to the first with a long conducting wire.
How much charge is transferred to the second sphere? Suppose the connected spheres are far apart compared to their radii.
Express your answer in terms of the variables Q, r1, and r2.
A 3.00-g bullet traveling horizontally at 400 m/s hits a 3.00-kg wooden block, which is initially at rest on a smooth horizontal table. The bullet buries itself in the block without passing through. The speed of the block after the collision is:
A gyroscope with rotational inertia 6.0 10-3 kg·m2 is precessing in a horizontal plane at 0.50 rad/s under the influence of a 0.28 N·m torque caused by a force pointing vertically downward
A basketball player of height 2.3 meter is standing 3.4 meter in front of a convex spherical mirror of radius of curvature 5.0 meter. Find what the size of the image
A rectangular block of metal of resistivity rho has dimensions dx2dx3d. A potential difference V is to be applied between two opposite faces of the block. What is the maximum current in terms of V, rho, and d?
An emf is induced in a conducting loop of wire1.30 {\rm m}long as its shape is changed from square to circular. Find the average magnitude of the induced emfif the change in shape occurs in 4.37 {\rm s}and the local 0.127-{\rm T}magnetic field is ..
Estimate mean and maximum velocities for a liquid
question a person moves a full sams club shopping cart mass80.0 kg from rest to a velocity of 1.30 ms over a distance
he beaker has a mass 15 grams when its empty the beaker plus the liquid has a mass of 38 grams. the liquid has a volume
Assume the Earth contains roughly the same amount of the neutrons and protons. Estimate The number of protons in Earth. The charge Earth would have if all its electrons were removed
Consider a visual binary star system with a period of 55.41 years. Its measured trigonometric parallax is 0.4217'' and, assuming that the plane of the orbit is in the plane of the sky, the true angular extent of the semi-major axis is 6.69''.
If a metal wire carries a current of 23.0 mA, how long does it take for 12.0×1020 electrons to pass a given cross-sectional area anywhere along the wire? The magnitude of the charge on an electron is 1.6 × 10-19 C.
Your cell phone typically consumes about 440 mW of power when you text a friend. what is the current flowing through the cell-phone circuitry under these circumstances
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