Answer
(a) $2.29\times 10^5\frac{m}{s}$
(b) $9.83\times 10^6\frac{m}{s}$
Work Step by Step
(a) We know that
$v=\sqrt{\frac{2e\Delta V}{m}}$
We plug in the known values to obtain:
$v=\sqrt{\frac{2(1.6\times 10^{-19})(275)}{1.673\times 10^{-27}}}=2.29\times 10^5\frac{m}{s}$
(b) We know that
$v=\sqrt{\frac{2e\Delta V}{m}}$
We plug in the known values to obtain:
$v=\sqrt{\frac{2(1.6\times 10^{-19})(275)}{9.11\times 10^{-31}\times 10^{-27}}}=9.83\times 10^6\frac{m}{s}$
