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Q1: A bare helium nucleus has two positive charges and a mass of 6.64 10-27 kg....

Q1: A bare helium nucleus has two positive charges and a mass of 6.64 10-27 kg.
(a) Calculate its kinetic energy in joules at 8.80% of the speed of light.
J

(b) What is this in electron volts?
eV

(c) What voltage would be needed to obtain this energy?
V
Q2: A 1.50 V battery supplies 0.303 W of power to a small flashlight for 19.7 min.
(a) How much charge does it move?
0 0
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