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Define the Newton's Law of Cooling
Newton's Law of Cooling: A cup of hot chocolate has cooled from 92°C to 50°C after 12 min in a room at 22°C.
a) What is the value for k (round to the nearest ten-thousandth)?
b) How long will it take for the drink to cool to 30°C (Round to the nearest tenth of a minute and label your answer?
Gold Leaf Electroscope: A gold leaf electroscope is a device that can be used for notice charge. By the use of this device we can also detect whether a body is positively or ne
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In an ideal transformer , the no. of turns in primary & secondary are 200 & 1000 respectively .If power input to primary is 10kW at 200V.Calculate i)output voltage ii)current in
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SECOND DEFINITION OF IMPULSE: It can be described as, "The change in momentum produced by the force of impulse".
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the average speed of an object over a given time duration is 6 m/s. If it travels first half of the duration with a constant speed 4 m/s, its speed during the next half duration is
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