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In niels bohr's 1913 model of the hydrogen atom an electron circles that proton at a distance of 5.29e-11 m with a speed of 2.19e6 m/s. compute the magnitude of the magnetic field that this motion produces at the location of the proton.
A proton moves with a velocity of v= (2i ? 5j +k ) m/s in a region in which the magnetic field is B= (i + 2j ?k ) T. What is the magnitude of the magnetic force this particle experiences?
two masses are separated by 3.85m. the mass of objects are 5.98kg and 7.35 kg. how far is the center of mass of the system
Estimate Earth's rotational inertia, assuming it to be a uniform solid sphere, What torque applied to Earth would cause the length of the day to change by 1 second every century
A hockey puck struck by a hockey stick is given an initial speed of 10 m/s. how far will the puck slide before stopping
A neutral conductor contains a hollow cavity in which there is a +100 nC point charge. what is the charge on the exterior surface of the conductor
a balloon filled with one liter of air is tied to a brick and dropped from a height of 4600m above sea level. what will be the volume of the baloon when it reaches sea level
A 12.8 g bulletis fired horizontally into a 93 g woodenblock initially at rest on a horizontal surface. what was the speed of the bullet immediately before impact
Consider NH3 vapor acting as a van der Waals gas with coefficients a = 4.169 atm-L2-mol-2 and b = 0.0371 L-mol-1. How much heat must be added to 50.0 g of the gas so that it experiences no change in internal energy as it undergoes isothermal reversib..
A 0.100g plastic bead is charged by the addition of 1 x10^10 excess electrons (i.e. so the bead becomes negatively charged). What electric field (magnitude and direction) will cause the bead to hang suspended in the air?
A baseball approaches home plate at a speed of 41.0 m/s, moving horizontally just before being hit by a bat. The batter hits a pop-up such that after hitting the bat, the baseball is moving at 50.0 m/s straight up. The ball has a mass of 145 g and is..
Four closed surfaces, S1 through S4, together with the charges %u22122Q, Q, Find the electric flux through each surface
A shell is shot with an initial velocity v0 of 18 m/s, at an angle of ?0 = 60° with the horizontal. How far from the gun does the other fragment land
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