A fixed charge of 10 nC sits at the origin. A charge of 9nC is places at (4m, 3m).
a) Find the electric potential energy of the 9 n charge
b) Find the work required to move the 9 n charge from its initial position to (-6m, 8m).
Answer:
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Standing Sound Waves: An organ pipe closed at one end and open at the other end has two successive harmonics with frequencies of 2170 Hz and 2790 Hz. What is the fundamental frequency of the pipe?
Fill in the blank(s) with the appropriate word(s).
Force on a Moving Charge: An electron moving in the +y direction, at right angles to a magnetic field, experiences a magnetic force in the -x direction. The direction of the magnetic field is in the
A. -x direction. B. +x direction. C. +y direction. D. -z direction. E. +z direction.
How about a piece of chromite?
What will be an ideal response?
We never find isolated, individual quarks because
A) quarks immediately undergo radioactive decay when they are separated. B) quarks are bound tightly together by neutrinos. C) quarks are always attached to electrons. D) the force between quarks is infinitely strong so they cannot be budged. E) whenever quarks are separated, the energy created by the separation creates new quark pairs.