ok, i need help with a problem for science that i cant seem to get the right asnwer for.The question was....suppose you had as many sheets of paper as you had atoms in question 3 (which was 9.970625 x 10^23). If each sheet of paper had a thickness of .1 mm (1 x 10^ -4 m), how high in meters would your stack of papers be? Thank you so much in advance if you actually take the time to help me with this.
2006-10-18 10:26:56 · 4 answers · asked by jamie23 3 in Science & Mathematics ➔ Earth Sciences & Geology
the answer i got when i attempted this problem was 9.970625 x 10^19 but i know that was wrong because if you are multiplying those numbers the exponent is obviously going to be bigger....right?
2006-10-18 10:29:14 · update #1
thanks so much, i guess i just forgot that it was 1/10,000 of a meter so my exponent would be smaller
2006-10-18 10:41:16 · update #2
if you had 5 sheets of paper, how thick would it be?
If you had 9.970625 x 10^23 sheets?
re. exponent No, you seem to have forgotten that the thickness of the paper is 1/10,000 of a meter
2006-10-18 10:29:20 · answer #1 · answered by arbiter007 6 · 0⤊ 0⤋
Your "additional details" answer is correct. The exponent in the result will be the sum (that's algebraic sum) of the exponents of the factors.
2006-10-18 17:31:45 · answer #2 · answered by Anonymous · 0⤊ 0⤋
1 sheet -------------------- 1 x 10^(-4) m
9.970625 x 10^(23) sheets------- Z m
Z = 9.970625 x 10^(23) * 1 x 10^(-4) = 9.970625 * 1 x 10^(23-4)
Z = 9.970625 x 10^(19) m
2006-10-18 17:35:21 · answer #3 · answered by Dr. J. 6 · 0⤊ 0⤋
When you multiply two or more numbers, the exponents of those numbers should be added, for example
a^x * b^-y * c^z
=(abc)^(x+(-Y)+z)
2006-10-18 17:47:59 · answer #4 · answered by orebabaa 4 · 0⤊ 0⤋