1) Show that the component of the electric force normal to any flat surface with a uniform charge density σ is given by F⊥=σΦE where ΦE is the electric flux through that surface due to an external electric field.
2) An insulating hemisphere with radius R and charge Q distributed uniformly over its flat, circular surface lies above a large plane with uniform charge density σ. The axis of the hemisphere is oriented vertically. For what mass M could the hemisphere remain stationary?
3) If the hemisphere and the plane share the same charge density of 100 μC/m2 and the hemisphere has a radius of 3.00 cm, what would be its upward acceleration if its mass were 100 g?
Answers: 3
Physics, 22.06.2019 06:30, vaelriacb9300
Suppose you have a box. which of these is not necessarily a true statement regarding the relationship between the force applied to the box, the work done on the box, and the distance the box is moved? a. if the box is not moved, no force is being applied to the box. b. if no force is applied to the box, no work is done on the box. c. if work is done on the box, then a force is applied to the box. d. if work is done on the box, then the box is moved a distance.
Answers: 2
1) Show that the component of the electric force normal to any flat surface with a uniform charge de...
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