Consider the circuit below. Which resistor has the largest power consumption?
1
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Albert Michelson is primarily remembered for
A) proving length contraction. B) not being able to detect an "ether". C) his theory published in 1916. D) proving that the speed of light is not constant. E) proving time dilation.
A radioactive isotope that emits a gamma quantum will change in what respect?
a. Atomic number increases by one. b. Atomic number decreases by one. c. Atomic mass number decreases by one. d. None of the above choices are valid.
Four waves are described by the following equations, where distances are measured in meters and times in seconds
I. y = 0.12 cos(3x - 21t) II. y = 0.15 sin(6x + 42t) III. y = 0.13 cos(6x + 21t) IV. y = -0.23 sin(3x - 42t) Which of these waves have the same speed? A) I and II B) I and III C) II and III D) III and IV E) II and IV
Human hearing is most sensitive around 2500 Hz. If the speed of sound is 340 m/s, what is the wavelength of this sound?
A. 340 m B. 0.14 m C. 2160 m D. 7.4 m