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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
barry had a pet dragon
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The nucleus of helium contains : (1)Four protons (2)Four neutrons (3)Two neutrons and two protons (4)Four protons and two electrons Ans: (3)Two neutrons and two prot
what is the displacement of the body when potential and kinetic energies are eqal?
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A sprinter runs 100.0 m. If he travels at constant acceleration of 1.95 m/s2 for the first 6.00 s, and then at constant velocity for the remaining time, what was his average veloci
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It is defined as the magnetic lines of force per unit area of the pole face. B=φ/A where φ is the magnetic lines of f
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