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Physics: Potential energy to stop or slow a Proton

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Part 1

A proton has an initial speed of 4.09E+5 m/s. What potential difference is required to bring the proton to rest?

Part 2

What potential difference is required to reduce the initial speed of the proton by a factor of 4?

Part 3

What potential difference is required to reduce the initial kinetic energy of the proton by a factor of 4?

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Solution Summary

The potential energy to stop or slow a proton is determined.

Solution Preview

The proton mass is equal to:

1.67262158 × 10-27 kilograms

The kinetic energy of the proton is given by:

(1/2) Mass X Velocity ^2

(1/2)mV^2

The proton will came to rest when the kinetic energy equal to the ...

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