A parsec is approximately 3.1 X 10^16 meters. If the distance to the farthest observable galaxies is approximately 1.62 X 10^9 parsecs, approximately how many meters is it to the farthest observable galaxies?
I don't even know what it's asking let alone where to start!
2007-06-08 09:33:43 · 9 answers · asked by ricanbaj07 1 in Science & Mathematics ➔ Mathematics
What this is asking is how far, in meters, these galaxies are.
You have a conversion factor here. 1 parsec = 3.1 x 10^16 m.
What scientific notation means is that if you have, say, 1.0 x 10^3 meters, then you are multiplying 1 meter by 10^3. Or, in other terms, you would move the decimal place over three times to see the number in standard notation.
1.0 x 10^3
=
10 x 10^2
=
100 x 10^1
=
1000
When you multiply numbers with scientific notation, you do the standard multiplication, and then add the exponents of the 10s.
3 x 10^4 * 4 x 10^5 = 12 x 10^9 = 1.2 x 10^10
Does that make sense?
2007-06-08 09:39:00 · answer #1 · answered by Brian L 7 · 0⤊ 0⤋
Painfully easy. You let the terminlogy get the best of you.
(1.62 x 10^9 parsecs) x (3.1 x 10^16 meters/parsec) =
(1.62 x 3.1) times 10 to the ninth plus sixteenth power (twenty-fifth)
OR
5.022 x 10^25 meters.
2007-06-08 09:44:36 · answer #2 · answered by Anonymous · 0⤊ 0⤋
50220000000000000000000000 meters
or 5.022 x 10^25 in scientific notation
Start by taking the number of meters equal to a parsec out of scientific notation, its easy just move the decimal point 16 spaces
Then take the number of parsecs out of scientific notation---move the decimal over 9 places
now multiply these numbers together to find the number of meters and that is the answer
2007-06-08 09:42:38 · answer #3 · answered by Anonymous · 0⤊ 0⤋
A Parsec is a unit of length. Simply multiply the two to get meters.
3.1X10^16 meters per parsec times 1.62X10^9 parsecs =
5.022 X10^25 meters
another way is 31,000,000,000,000,000X1,620,000,000 = 50,220,000,000,000,000,000,000,000
2007-06-08 09:38:25 · answer #4 · answered by timdoas 3 · 0⤊ 0⤋
1 parsec<------>3.1 x 10^16 m
1.62 x10^19 parsec is then given by
1.61 x 10^19 x 3.1 x 10^16 m
= 4.96 x 10^35 m
2007-06-08 10:30:25 · answer #5 · answered by Como 7 · 0⤊ 0⤋
the first one is the unit of measure. 31000000000000000 meters = one parsec. the farthest galexie we can see is 1620000000 parsecs away. multiply the two together to get (i think i had to do this in my head) around 4.122X10^23m. That tells how many meters the farthest one is away.
2007-06-08 09:50:19 · answer #6 · answered by sweeeeeeet 1 · 0⤊ 0⤋
Multiply total parsecs by one parcec.
2007-06-08 09:41:13 · answer #7 · answered by taurus 4 · 0⤊ 0⤋
the first number
3.1 is the coefficient
the second number 10^16 is called the base
it is always 10 written in exponent form.
to write it in scientific notation....
move the decimal 16 times to the right
so 3.1 would be
310000000000000000.0
2007-06-08 09:45:52 · answer #8 · answered by stefanie l 1 · 0⤊ 0⤋
You just need to multiply the two numbers together. It is only confusing you because the numbers are so big.
I got 5.02 E25m
2007-06-08 09:40:28 · answer #9 · answered by Anonymous · 0⤊ 0⤋