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Initially at rest, a small copper sphere with a mass of 3.03·10-6 kg and a charge of 5.05·10-4 C is accelerated through a 6990-V potential difference before entering a magnetic field of magnitude 4.01 T, directed perpendicular to its velocity. What is the radius of curvature of the sphere's motion in the magnetic field?
A black, totally absorbing piece of cardboard of area A = 3.0 cm2 intercepts light with an intensity of 3.9 W/m2, What radiation pressure is produced on the cardboard by the light
A cryogenic storage container holds liquid helium, which boils at 4.2 K. Suppose a student painted the outer shell of the container black, Determine the rate of heat loss due to radiation
Radioactive isotopes frequently occur together in mixtures. Assume a 400g sample contains, with a half-life of 12 days, and, with a half-life of 4.5 days. If there are firstly twice as many calcium atoms as there are barium atoms, what will be the ra..
Two spherical conductors are connected by a long conducting wire and a total charge of 20.0 μC is placed on this combination. One sphere has a radius of 4.0 cm while the other has a radius of 6.0 cm. Explain the reasoning of the steps that allow you ..
Two cars traveling with the same speed move directly away from one another. What is the speed of the cars
A Toyota Prius driving north at 61 and a VW Passat driving south at 42 are on the same road heading toward each other.
A 1410-kg racecar is driving around a circular track of radius 161 m. What is the magnitude of the net force acting on the vehicle at this time and the force's direction relative to the velocity
An electron is constrained to the central axis of a ring of charge 1 coulomb and of radius 1 meter. Find the frequency of oscillation of the electron in Hertz
A mixture of ethyl alcohol (molecular mass = 46.1 u) and water (molecular mass = 18.0 u) contains one mole of molecules. What mass m of water does it contain
Please show how you got the answer, thanks! At the top of a hill with slope angle 32o a snow sled is moving at 4 m/s. how fast will the sled be traveling at the bottom
A point particle with charge q = 86 µC is placed at a corner of a cube of edge a = 12 cm, What is the flux through each of the other cube faces
A 5.00 X 10-2 kg mass with a charge of +0.75 mC is hung by a thin insulated thread. A charge of -0.9 mC is held 0.15 meters directly to right so that the thread makes an angle q with the vertical. What is the angle q and the tension in the string.
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