An electron with a kinetic energy equal to 40 J is moving in an electric field....

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An electron with a kinetic energy equal to 40 J is moving in an electric field. The electric field produces a force the slow

An electron with 50 J of energy enters a magnetic field. The magnetic field changes the direction of the electron to follow a

A ball is thrown straight up and come back down. When it comes back down, it is caught at the same height as it was thrown. H

A Helium atom can be thought of as a positively charges nucleus with a charge of +2 and two electrons, each with a charge of

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Answer 1

Answer #1

1) work done = change in kinetic energy

Work done = 50 - 0.5m(Vf²)

Work done = 50 - 0

Work done = 50 J

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Answer 2

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An electron with a kinetic energy equal to 40 J is moving in an electric field....

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