The drawing shows a positive point charge +q1, a second point charge q2 that may be positive or negative, and a spot labeled p, all on the same straight line. the distance d between the two charges is the same as the distance between q1 and the spot p. with q2 present, the magnitude of the net electric field at p is twice what it is when q1 is present alone. given that q1 = +0.20 μc, determine the magnitude |q2| when q2 is
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Physics, 22.06.2019 01:30
What is the magnitude of the resultant vector round your answer to the nearest tenth
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Physics, 22.06.2019 07:30
Carbon-14 is a radioactive element that undergoes beta decay. which force is responsible for allowing carbon-14 to become stable? electromagnetic gravitational weak nuclear strong nuclear
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Physics, 22.06.2019 18:00
Cells in the nervous system have a potential difference of 70 mv across the cell membrane separating the interior of the cell from the extracellular fluid. this potential difference is maintained by ion pumps that move charged ions across the membrane. is this an emf? select the correct answer and explanation. 1)no. the ion pumps cannot separate charges; thus, they cannot create a potential difference. 2)yes. the ion pumps cannot separate charges, but they still can create a potential difference. 3)yes. the ion pumps can actively separate charge; thus, they can create a potential difference. 4)no. the ion pumps can separate charges, but they cannot create a potential difference.
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Physics, 22.06.2019 19:30
The nuclear potential that binds protons and neutrons in the nucleus of an atom is often approximated by a square well. imagine a proton conned in an innite square well of length 105 nm, a typical nuclear diameter. calculate the wavelength and energy associated with the photon that is emitted when the proton undergoes a transition from the rst excited state (n 2) to the ground state (n 1). in what region of the electromagnetic spectrum does this wavelength belong?
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The drawing shows a positive point charge +q1, a second point charge q2 that may be positive or nega...
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