The distance to a type I Cepheid that has a period of 8 days and a measured brightness of (1.02×10^-9) W/m^2 is _____ meters.
Report your answer to 2 decimal places using scientific notation in the textboxes below.
Only one number should be to the left of the decimal point!
n.nn x 10^n
and
The distance to a type I Cepheid that has a period of 8 days and a measured brightness of (6.20×10^-10) W/m^2 is _____ meters.
Report your answer to 2 decimal places using scientific notation in the textboxes below.
Only one number should be to the left of the decimal point!
n.nn x 10^n
