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College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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A Van de Graaff generator is charged so that the magnitude of the electric field at its surface is 3.0 × 104 N/C.
Find …
(a) the electric force exerted on a proton released at its surface and …
(b) the acceleration of the proton at that instant of time.
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- An electron with a speed of 5.00E8 cm/s enters an electric eld of magnitude 1.00E3 N/C, traveling along a field line in the direction that retards its motion. (a) How far will the electron travel in the eld before stopping momentarily? (b) How much time will have elapsed? (c) If the region containing the electric eld is 8.00 mm long (too short for the electron to stop within it), what fraction of the electron's initial kinetic energy will be lost in that region?arrow_forwardA helium nucleus, called an alpha particle, has a charge of 2e and mass of 4mp, where e and mp are the charge and mass of a proton, respectiyely. Starting from rest, a proton and an alpha particle are accelerated through a constant electric field E. After a time At, which particle has travelled the furthest distance? O (a) The alpha particle O (b) They travel the same distance O (c) The protonarrow_forwardWhat is the magnitude of an electric field at a point that is 4.24 meters away from a 1.95C charge?arrow_forward
- A negatively charged particle with charge -q is placed at rest in an electric field E that increases along + x direction. Therefore, the charged particle with -q will be accelerated alongarrow_forwardBeams of high-speed protons can be produced in "guns" using electric fields to accelerate the protons. (a) What acceleration would a proton experience if the gun's electric field were 2.82× 10° N/C? (b) What speed would the proton attain if the field accelerated the proton through a distance of 1.02 cm? (a) Number Units Units (b) Numberarrow_forwardA uniform electric field exists in a region between two oppositely charged plates. An electron is released from rest at the surface of the negatively charged plate and strikes the surface of the opposite plate, 2.0 cm away, in a time 1.5 X 10-8 s. (a) What is the speed of the electron as it strikes the second plate? (b) What is he magnitude of the electric field Ē?arrow_forward
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