Elastic Collisions: A proton of mass m is at rest when it is suddenly struck head-on by an alpha particle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is perfectly elastic, what speed will the alpha particle have after the collision? (Assume the neutron's mass is equal to the proton's mass.)
A. zero
B. 2v/3
C. 3v/5
D. 5v/3
Answer: C
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Answer the following statement(s) true (T) or false (F)
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Indicate whether the statement is true or false
A 1 pF capacitor is connected in parallel with a 2 pF capacitor, the parallel combination then being connected in series with a 3 pF capacitor. The resulting combination is then connected across a battery
(a) Which capacitor has the greatest charge? (b) Which capacitor has the greatest voltage?