Question

Light travels at a speed of 3.00 x 100 ^10 cm/s. What is the speed of light in kilometers/hour?​

Answer 1

1.1 x
`10^(9)` km/h

Step-by-step explanation:

Here we need to do two conversions- one from centimetres to kilometres and one from seconds to hours.

To get from cm to km- we divide by 100 000 since there are 100 000 cm in a km.

To get from seconds to hours we divide by 3600 since there are 3600 seconds in an hour

`(3*10^(10)cm/100000 )/(1second/3600) =1.1*10^(9) km/h`