A spherical cavity of radius 5.00 cm is at the center of a metal sphere of radius 15.5 cm . A point charge 6.60 uC rests at the very center of the cavity, whereas the metal conductor carries no net charge. Part A Determine the electric field at a point 4.00 cm from the center of the cavity ν ΑΣφ N/C E1 = Request Answer Submit Part B Determine the electric field at a point 7.50 cm from the center of the cavity. ν ΑΣφ N/C E2 = Part C Determine the electric field at a point 40.0 cm from the center. VA N/C E3 Submit Request Answer

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Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.