Express 130 kilometers per second in meters per hour
A
7.8 x 10-5
B
4.68 x 106
C
7,800,000
D
4.68 x 108
E
7.80 x 105
Verified Correct Answer: D.
Step-by-Step Mathematical Solution
1km = 1000m
60sec. = 1 mins
60 mins. = 1 hr
130000m per sec = 130000 x 3600
= 468000000m/hr
= 468 x 108 m/hr
Source: Myschool Past Questions Archive (Record #32520)