Mathematics, 18.06.2021 23:00 jenna34032
If it takes a current of 10 A flowing for 180s to boil a kettle of water requiring 2.2 x 10^8 J of heat energy, what is the potential difference across the kettle? (HINT: this requires 2 formulas).
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Adrawer contains 12 identical white socks, 18 identical black socks and 14 identical brown socks. what is the least number of socks you must choose, without looking, to be certain that you have chosen two socks of the same colour?
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