a satellite , 6378 k above earth , travels about 260 000 k a day. How far does it travel in a 1h ? 1 min? 1 year?
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1 day = 24 hours, so 1 hour is 1/24th of a day. Hence it travels 260000/24 km in an hour. 1 minute = 1/60 hr, so it travels (260000/24)/60 km in a minute. 1 year = 365 days, so it travels 365*260000 km in a year.