The radius of Earth is 6 370 000 m. Express this measurement in km in scientific notation with the correct number of significant digits.
2007-06-08 02:41:06 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
6370000 m = 6370 km, and has three significant figures. In scientific notation,
it's: 6.37 × 10³ km.
2007-06-08 02:46:53 · answer #1 · answered by Anonymous · 1⤊ 0⤋
The answer is
6.37 x 10^3 km
first convert 6 370 000 m to km
6 370 000m x (1km / 1000m)
=6 370 km
the unit m will be cancelled because of the operation used which is division.
your given measurement has 3 significant figures and so the answer should also be in 3 significant figures
just move the decimal point to the left reaching the space in between the first and second number which are 6 and 3
then count how many moves you did and it is 3 which will be your exponent
and so the answer is:
6.37 x 10^3 km
don't foget to put the unit ok? ^^
2007-06-08 09:48:48 · answer #2 · answered by Anya 2 · 0⤊ 0⤋
= 6370 km
= 6.370 x 10^3 km
2007-06-08 13:26:40 · answer #3 · answered by Como 7 · 0⤊ 0⤋
6.37*10^3 km (to 3 s.f)
2007-06-08 09:46:42 · answer #4 · answered by nivik 3 · 0⤊ 0⤋
6.37x10^3
2007-06-08 09:51:27 · answer #5 · answered by Julian L 2 · 0⤊ 0⤋
congratulations, you managed to find some idiots who will answer you.
2007-06-08 09:49:27 · answer #6 · answered by popeye 3 · 0⤊ 1⤋