A space shuttle orbits the earth at about 2 kilometers per second. This speed is equal to how many kilometers per hour? Choose the correct choice from the following choices.
A) 7,200	B) 8,880	C) 10,800	D) 28,800	E) 48,000
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   2*3600=28,800   7,200nswer: 7,200
<result>A</result>
A space shuttle orbits the earth at about 2 kilometers per second. This speed is equal to how many kilometers per hour?