Google it.
Go to Google, type in "3.00E10 cm/s to km/hr" without the quotation marks and hit the enter button.
Light travels at a speed of 3.00 times 10^10 cm/s. What is the speed of light in kilometers/hour?
3 answers
first multiply by 10^-2 to get meters instead of centimeters so
3 * 10^8 m/s * 1 km/10^3m * 3600 s/hr
= 10800 * 10^5 = 1.08 * 10^9 km/hr
or type
3*10^8 m/s = km/hr
Into a Google search box
3 * 10^8 m/s * 1 km/10^3m * 3600 s/hr
= 10800 * 10^5 = 1.08 * 10^9 km/hr
or type
3*10^8 m/s = km/hr
Into a Google search box
u stupid