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What is a calorie?
a) Amount of heat needed to raise one gram of water one degree Celsius.
b) Amount of work needed to move one gram of water by one centimeter.
c) Amount of heat needed to melt ice.
d) Amount of heat needed to raise one gram of water one degree Fahrenheit
Ans- Amount of heat required to raise one gram of water one degree celsius
The points of maximum amplitude are called as antinodes. At ends density and air pressure both are very low.
WHY Surface tension increases when an highly soluble SUBSTANCE is dissolved in water WHILE IT DECREASES WHEN an weakly soluble substance is dissolved in water
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Explain thew laws of physics It is thought that the laws of physics do not change from place to place. This is why experiments carried out in different countries by dissimilar
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Explain Transmitters and Receivers Your radio is able to give you the news or play music because it can receive signals that are transmitted by radio stations. Radio waves are el
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