To date a rock thought to be many millions of years old, you should not use the decay of
A) uranium to lead.
B) potassium to argon.
C) carbon-14.
Answer: C
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Which is a useful property of a prism?
A) internally reflects 100% of incident light B) changes directions of light in a variety of ways C) re-inverts images D) all the above E) none of the above
Rank the following kinds of waves according to their frequencies from highest to lowest:
(a) gamma rays (b) microwaves (c) radio waves (d) visible light (e) x-rays
1.c > b > d > e > a 2.b > c > e > b > a 3.a > e > d > b > c 4.e = a = c = d = bPower: How many joules of energy are used by a 2.0 hp motor that runs for 1.0 hour? (1 hp = 746 W)
Fill in the blank(s) with the appropriate word(s).
Nuclear Binding Energy: The stability of 
Cl with respect to alpha, beta-plus and beta-minus decay is to be determined. The following atomic masses are known:
A. not subject to alpha, beta-plus or beta-minus decay. B. subject to alpha decay only. C. subject to beta-plus decay only. D. subject to beta-minus decay only. E. subject to beta-plus or beta-minus decay, but not to alpha decay.