The energy content of matter itself which was discovered by Albert Einstein in his Special Theory of Relativity is called
A) thermal energy
B) radiative energy
C) mass-energy
D) kinetic energy
C
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Three identical resistors are connected in series to a battery. If the current of 12 A flows from the battery, how much current flows through any one of the resistors?
A) 12 A B) 36 A C) 4 A D) 24 A E) 6. A
If a negative charge is placed inside a hollow isolated conductor that is originally neutral and the charge does not touch that conductor at any time:
a. both the inner and outer surfaces will become negative. b. both the inner and outer surfaces will remain neutral. c. the outside surface of the conductor will become positively charged. d. the inside surface of the conductor will become positively charged.
The proton-proton chain needs high temperature because
a. of the ground state energy of the hydrogen atom. b. of the presence of helium atoms. c. the protons must overcome the Coulomb barrier. d. of the need for low density. e. the neutrinos carry more energy away than the reaction produces.
The energy stored in the earth's magnetic field with a strength of 0.5 × 10-4 T in a room 3.0 m by 4.0 m by 2.4 m is
A) 570 mJ. B) 29 mJ C) 10 mJ. D) 100 mJ. E) zero.