A beam contains 84 x 108 doubly charged positiveions per
A beam contains 8.4 x 108 doubly charged positiveions per cubic centimeter, all of which are moving north with aspeed of 4.2 x 105 m/s. What is the magnitude of the current density?
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a tall tree is growing across a river from you you would like to know the distance between yourself and the tree as
a disk-shaped merry-go-round of radius 243 rm m andmass 185 rm kg rotates freely with anangular speed of0701 rm revsa
during the 42 min a 69 a current is set up in a wire how many a coulombsand b electrons pass through any crosssection
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a beam contains 84 x 108 doubly charged positiveions per cubic centimeter all of which are moving north with aspeed of
spherical capacitor the plates of a sphericalcapacitor have radii 310 and 450 mma calculate the capacitanceb what must
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a slide projector has a converging lens whose focal length is10500 mm a how far in meters from the lensmust the screen
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