I learned how to do this, but I’m drawing a blank here. To help.
answer 2
? miles/hour = 3.0 x 10^8 meters/second (3.28 feet/1 meter)*(1 mile/5280 feet)*(60 minutes/1 hour)*(60 seconds/1 minute) = 6, 71 x 10^ 8 miles/hour
Answer 1
1 foot = 0.3048 meters
1 mile = 5280 feet
1 hour = 3600 seconds
3.00×10^8 m/s 1 ft/0.3048m 1 mi/5280 ft 3600 s/h = 6.71E+08 m/h
Answer: 6.71E+08 mph