Aproton is traveling horizontally to the right at 4.40×106 m/s .
part a
find (a)the magnitude and (b) direction of the weakest electric field that can bring the proton uniformly to rest over a distance of 3.20 cm .
e =
nothing
n/c
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part b
? =
nothing
? counterclockwise from the left direction
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part c
how much time does it take the proton to stop after entering the field?
t =
nothing
s
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part d
what minimum field ((a)magnitude and (b)direction) would be needed to stop an electron under the conditions of part (a)?
e =
nothing
n/c
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part e
? =
nothing
? counterclockwise from the left direction

The lights used by mark watley (played by matt damon) during the film the martian seem to be metal halide lamps. metal halide lamps are filled with vaporized mercury and metal-halogen compounds. when an electric current is passed through the lamp, the tube begins to glow a bright white/blue color. if you were to pass this light through a prism to separate the individual light frequencies, you would see a rainbow just as you would if using natural sunlight because of the complexity of the metal halide gas and the vast amount of possible electron transitions. (the study of light in this way is known as spectroscopy and allows astronomers to know exactly what atoms compose distant stars, simply by looking at the light they emit. the spectral lines an atom produces uniquely identifies that atom just like a fingerprint uniquely identifies a person. the momentum equation and energy equation that we have used above can be combined to give the following equation: c = e p where again p is the phonon momentum, e is the photon energy and c is the speed of light. when you divide the photon energy found in #6 by the photon momentum found in #4, do you get the speed of light? (if not, check your work for questions #4 through #6). yes no

What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?

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