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olga2289 [7]
3 years ago
12

An electron traveling horizontally to the right enters a region where a uniform electric field is directed downward. What is the

direction of the electric force exerted on the electron once it has entered the electric field?
Physics
1 answer:
astraxan [27]3 years ago
8 0

Answer:

Upward

Explanation:

For charged particles immersed in an electric field:

- if the particle is positively charged, the direction of the force is the same as the direction of the electric field

- if the particle is negatively charged, the direction of the force is opposite to the direction of the electric field

In this problem, we have an electron - so a negatively charged particle - so the direction of the force is opposite to that of the electric field.

Since the electric field is directed downward, therefore, the electric force on the electron will be upward.

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Answer:

1.34 x 10^3 Pa

Explanation:

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height of oil column = 16.1 cm = 0.161 m

Pressure on the surface of water = height of oil column x density of oil x g

                                                      = 0.161 x 0.85 x 10^3 x 9.81 = 1.34 x 10^3 Pa

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When reading a buret, where is the initial and final volumes taken from? The top (where the zero is) or the bottom?. If the bure
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A rock falls from the top of a hill to the bottom. The total energy of the rock at the top isn’t the same as the sum of its pote
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Answer:

A) some of the rocks energy is transformed to thermal energy

Explanation:

If we neglect air resistance during the fall of the rock, than the mechanical energy of the rock (which is sum of its potential energy and its kinetic energy) would be constant during the entire motion, so the total energy of the rock at the top would be the same as the sum of its potential energy and kinetic energy at the bottom.

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