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Category: Electromagnetic Theory
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Physics for Bioscience (II)
Transcript
5. (a) Two protons in a molecule are separated by 3.80 1010 m. Find the electric force exerted by one proton on the other. (b) How does the magnitude of this force compare to the magnitude of the gravitational force between the two protons (c) What If What must be the charge-to-mass ratio of a particle if the magnitude of the gravitational force between two of these particles equals the magnitude of electric force between them 43. A proton accelerates from rest in a uniform electric field of 640 N/C. At some later time, its speed is 1.20 106 m/s (nonrelativistic, because v is much less than the speed of light). (a) Find the acceleration of the proton. (b) How long does it take the proton to reach this speed (c) How far has it moved in this time (d) What is its kinetic energy at this time 52. Three point charges are aligned along the x axis as shown in Figure P23.52. Find the electric field at (a) the position (2.00, 0) and (b) the position (0, 2.00). Gauss Law 2. A vertical electric field of magnitude 2.00 104 N/C exists above the Earths surface on a day when a thunderstorm is brewing. A car with a rectangular size of 6.00 m by 3.00 m is traveling along a roadway sloping downward at 10.0. Determine the electric flux through the bottom of the car. 10. The electric field everywhere on the surface of a thin spherical shell of radius 0.750 m is measured to be 890 N/C and points radially toward the center of the sphere. (a) What is the net charge within the spheres surface (b) What can you conclude about the nature and distribution of the charge inside the spherical shell v WBNG8NcucWJIpD8DoAB HusMRx d coQt6DJD9-z8g9ACO9c L6DZ1 dCZewG(L56NWC_XBRqdzi1oKzov0b_Sl,@nt
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