Physics, 11.02.2020 19:53 michellealvarez985
A very large, horizontal, nonconducting sheet of charge has uniform charge per unit area 4.00 × 10−6 C/m2. A small sphere of mass m = 7.00 × 10−6 kg and charge q is placed 3.00 cm above the sheet of charge and then released from rest.
A.
If the sphere is to remain motionless when it is released, what must be the value of q?
B.
What is q if the sphere is released 1.50 cm above the sheet?
Answers: 3
Physics, 22.06.2019 13:50
The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.939 w/m^2 . the wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. how much total electromagnetic energy falls on the area during 1.0 minute?
Answers: 2
Physics, 22.06.2019 19:50
Ahuge (essentially infinite) horizontal nonconducting sheet 10.0 cm thick has charge uniformly spread over both faces. the upper face carries +95.0 nc/m2 while the lower face carries -25.0 nc/ m2. what is the magnitude of the electric field at a point within the sheet 2.00 cm below the upper face? (ε0 = 8.85 × 10-12 c2/n · m2)
Answers: 1
Physics, 23.06.2019 00:30
What types of radiation make up the electromagnetic spectrum?
Answers: 2
A very large, horizontal, nonconducting sheet of charge has uniform charge per unit area 4.00 × 10−6...
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