Two parallel flat planes of positive charge are separated by a distance d. Plane #1 has charge density ?1 and plane #2 has a charge density ?2. ?1> ?2
(a) In the region between the planes, the magnitude of the electric field is (b) In the region outside the planes the magnitude of the electric field is
(a) (σ1 - σ2)/2εO.
(b) (σ1 + σ2)/2εO.
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Magnetic Field of a Long Wire: A long, straight wire carrying a current is placed along the y-axis. If the direction of the current is in the +y direction, what is the direction of the magnetic field due to this wire as you view it in such a way that the current is coming directly toward you?
A. clockwise, around the x-axis B. counterclockwise, around the x-axis C. counterclockwise, around the z-axis D. counterclockwise, around the y-axis E. clockwise, around the y-axis
State Kepler's First Law of Orbital Motion
What will be an ideal response?
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What parts of the EM spectrum are now able to be viewed in the universe?
What will be an ideal response?