Electromagnetic radiation (light) consists of waves. More than a century ago, scientists thought that light, like other waves, required a medium (called the ether) to support its transmission. Glass, having a typical mass density of ρ = 2770 kg/m3, also supports the trans...
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mr.james need to have Rs.75000 at the end of 5 years.How much he have to save each year if rate of interest is 8% p.a compounded semiannualy?
maths - challenge
Simon starts a new job . On the first day he gets paid 1p . on the second day he gets paid 2p , and every day after that his pay doubles . how many days will it take him to earn £1,000 in a day ?
i think of a number and divide it by 25 and then add 6 . the answer is 18 . whatnumber did i think of ?
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