According to a postulate of Einstein, which of the following describes the nature of the laws of physics as one observes processes taking place in various inertial frames of reference?
a. Laws are the same only in inertial frames moving at near speed of light.
b. Laws are the same in all inertial frames.
c. Laws are the same only in inertial frames with zero velocity.
d. Laws are the same only in inertial frames moving at low velocities.
B
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Schwarzschild showed how the _______________ of the event horizon depends only on the mass of the black hole
Fill in the blank(s) with correct word
Which of the following statements correctly describes the motion of the particles in Saturn’s rings?
a. Particles in all the rings hover motionlessly high above Saturn. b. Particles in the inner rings orbit Saturn at a faster speed than particles in the outer rings. c. Particles in the inner rings orbit Saturn at a slower speed than particles in the outer rings. d. All the particles in the rings orbit Saturn with the same orbital period.
Sun's radiant energy is composed of shorter wavelengths than Earth's due to Sun's greater
A) size. B) surface temperature. C) both of these D) neither of these
A 4.0-g string is 0.36 m long and is under tension. The string vibrates at 500 Hz in its third harmonic. What is the wavelength of the standing wave in the string?
A) 0.24 m B) 0.36 m C) 0.54 m D) 0.72 m E) 0.90 m