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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 protons
what is inertial
The index of refraction of a particular medium is nearly the same for all wavelengths hence we often associate a single value the average value of the index of refraction to the me
A 2.00 x 10 3 -g sample of water at 100.0°C is mixed with a 4.00 x 10 3 -g sample of water at 0.0°C in a calorimeter. What is the equilibrium temperature of the mixture?
Enrique Iglesias belts out a high-C (1024 Hz) from the deck of his yacht. What is the wavelength of this sound wave in the surrounding air? As the sound wave enters the ocean below
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The half-life of an isotope of an element is 5 days. The mass of a 10 gram sample of this isotope remaining after 20 days is: a) 0.312 grams b) 0.625 grams c) 1.25 g
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An egg beater Study an egg beater, hand drill or some other device in which an enhance of speed is obtained by means of gears.
Can you show mathematically that the total energy of a simple harmonic oscillator remains constant?
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