As Kepler's first attempt to invent a theory that agreed with Tycho's data, he tried to "fit" the data for Mars to an orbit that was
A) an ellipse with the sun at one focus.
B) a loop-the-loop, i.e., a circle within a circle.
C) a circle with the sun at the center.
D) an ellipse with Earth at one focus.
E) a circle with Earth at the center.
C
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The energy of a photon
a. is proportional to the wavelength of the light. b. is inversely proportional to the wavelength of the light. c. depends only on the speed of the light. d. depends only on the mass of the photon. e. depends on both the mass and speed of the photon.
Double-Slit Interference: If a sheet containing two very thin slits is heated (without damaging it), what happens to the angular location of the first-order interference minimum?
A. It moves toward the centerline. B. It moves away from the centerline. C. It doesn't change.
Ultramafic rocks are commonly found forming at the Earth's surface.
Indicate whether the statement is true or false.
A current carrying loop of wire lies flat on a table top. When viewed from above, the current moves around the loop in a counterclockwise sense
What is the direction of the magnetic field caused by this current, outside the loop? The magnetic field A) circles the loop in a clockwise direction. B) circles the loop in a counterclockwise direction. C) points straight up. D) points straight down. E) points toward the east.