If the half-life of an element is big, that means that
A. it decays faster than one with a small half-life
B. it decays slower than one with a small half-life
C. it belongs to a very heavy element
D. it emits lots of neutrons when it decays
Answer: B. it decays slower than one with a small half-life
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Two unknown resistors A and B are connected together. When they are connected in series their combined resistance is 15 ?. When they are connected in parallel, their combined resistance is 3.3 ?. What are the resistances of A and B?
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