The most accurate Greek attempt to explain planetary motion was the model of:
A) Aristotle.
B) Pythagoras.
C) Hipparchus.
D) Ptolemy.
E) Erastothenes.
D
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Which of the following statements about the moons of the jovian planets is not true?
A) Some of the moons are big enough that we'd call them planets (or dwarf planets) if they orbited the Sun. B) One of the moons has a thick atmosphere. C) Many of the moons are made largely of ices. D) Most of the moons are large enough to be spherical in shape, but a few have the more potato-like shapes of asteroids.
The concept of molecules:
a. helps model how the law of definite proportions might work. b. proves the law of definite proportions. c. is unrelated to the law of definite proportions. d. violates the law of definite proportions. e. supports the Aristotelian concept of four basic elements.
Light is a transverse wave
a. True b. False Indicate whether the statement is true or false
Which feature of this plot indicates that the neutrino has a very small rest mass?
a. The location of the peak near a kinetic energy of 0.2. b. The overall slope between the peak and the maximum kinetic energy. c. The value of the maximum kinetic energy. d. The brief upward slope initially of the curve. e. The absence of any events for large values of the kinetic energy.