A space shuttle orbits the earth at about 12 kilometers per second. This speed is equal to how many kilometers per hour?  Pick one
A) 480
B) 2,880
C) 4,800
D) 28,800
E) 43,200
Seconds in 1 hours:   60s in 1 min   60 min in 1 hr   60*60= 
<gadget id="calculator">60*60</gadget>
<output>3_600</output>
3600 sec in 1 hr   12*3600=43,200   Answer: 43,200
<result>E</result>
A space shuttle orbits the earth at about 12 kilometers per second. This speed is equal to how many kilometers per hour?