The primary difference between the special theory of relativity and the general theory of relativity is that the general theory also describes
A) the nature of gravity.
B) length contraction.
C) time dilation.
D) the constancy of the speed of light.
A) the nature of gravity.
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Suppose you were to try to create a proton-antiproton pair by annihilation of a very high energy photon. The proton and the anti-proton have the same masses, but opposite charges. What energy photon would be required?
A) 1.022 MeV B) 223. MeV C) 1.88 GeV D) 940. MeV E) 0.47 GeV
Refer to the accompanying narrative. What variable or variables were manipulated by the scientist?
a. DDT only b. temperature only c. weight differences only d. both DDT and weight differences e. both temperature and weight differences
A body at the end of a spring oscillates up and down ten times in five seconds. The period of oscillation is 2 s
Indicate whether the statement is true or false
When a beam of light, originally traveling in air, enters a piece of glass having an index of refraction of 3/2, its wavelength
A) increases by a factor of 3/2. B) is reduced to 2/3 its original value. C) is unaffected.