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The velocity of light is 3 xx 10^(10) cm/s. Express it in miles/hour. |
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Answer» SOLUTION :Since, `1 cm = 6.214 XX 10^(-6)` miles and `1 s = 1/(3600)` HOUR. Therefore, the CONVERSION factor for cm is: `1 = (6.214 xx 10^(-6))/(1 cm)` and that for second would be: `1=(1/3600) "hours")/(1 s)` Hence, `3 xx 10^(10) cm//s = (3 xx 10^(10) cm xx (6.214 xx 10^(-6) "miles")/(1 cm))/(1s xx (1/(3600 "hours"))/(1 s))` `=(3 xx 10^(10) xx 6.214 xx 10^(-6))/(1/3600)` `=6.711 xx 10^(8)` miles/hour |
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