roughly, it takes light less 0.0000000003 of a second to travel one-menter distance. Express this number in the form of a x 10^n where 1 < a. <10 and is one-digit number. (1 point)
A.3x10^9
B. 3x10^-8
C. 3x10^-9
D. 3x10^8
To express the number in the form of a x 10^n, we need to move the decimal point to have one digit to the left of the decimal point.
Given that it takes light less 0.0000000003 of a second to travel one-meter distance, we need to move the decimal point 11 places to the right.
0.0000000003 = 3 x 10^(-11)
Therefore, the answer is C. 3x10^-11.