Divide by 360,000.
100 for cm to metre
and 3600 for hour to sec.
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( K cm/hr ) x ( 1 meter/100 cm ) x (1 km / 1,000 meters ) x (1 hr / 3,600 sec )= ( K x 1 x 1 x 1 ) / ( 100 x 1,000 x 3,600 ) (cm - m - km - hr) / (hr - cm - m - sec)= K / 360,000,000 km/secTake the number of cm per hour. Divide it by 360 millionto get the number of km per second.
to make cm to km, divide by 100000. = km/s to convert from per second to per hour, multiply by 360 overall: *360/100000
( K cm/hr ) x ( 1 meter/100 cm ) x (1 km / 1,000 meters ) x (1 hr / 3,600 sec )= ( K x 1 x 1 x 1 ) / ( 100 x 1,000 x 3,600 ) (cm - m - km - hr) / (hr - cm - m - sec)= K / 360,000,000 km/secTake the number of cm per hour. Divide it by 360 millionto get the number of km per second.
cm/sec, yes? ok, divide by 100 to go from cm to m. then multiply by 3600 to go from sec to hr
yes almost 5 times greater 139 cm/sec x 60sec/min = 18,340 cm/min x 60min/hour = 1,100,400 cm/hour /100,000 cm/km = 11.004 km/hour