Solution Found!
A proton has an initial speed of 4.0 × 105 m/s. (a) What
Chapter 20, Problem 22P(choose chapter or problem)
A proton has an initial speed of \(4.0\times10^5\mathrm{\ m}/\mathrm{s}\) . (a) What potential difference is required to bring the proton to rest? (b) What potential difference is required to reduce the initial speed of the proton by a factor of 2? (c) What potential difference is required to reduce the initial kinetic energy of the proton by a factor of 2?
Questions & Answers
QUESTION:
A proton has an initial speed of \(4.0\times10^5\mathrm{\ m}/\mathrm{s}\) . (a) What potential difference is required to bring the proton to rest? (b) What potential difference is required to reduce the initial speed of the proton by a factor of 2? (c) What potential difference is required to reduce the initial kinetic energy of the proton by a factor of 2?
ANSWER:Step 1 of 4
The initial speed of the proton is,
\(v_i=4\times10^5\mathrm{\ m}/\mathrm{s}\)
The mass of the proton is,
\(m_p=1.67\times10^{-27}\mathrm{\ kg}\).
The charge of the proton is,
\(q=1.6 \times 10^{-19} \ C\).