In 1632, which book did the Inquisition order sales to be stopped?
a. De Revolutionibus
b. Stederreus Nunctus
c. Dialogo
d. De Stella Nova
e. Astronomia Nova
c
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A charged particle of enters a region of magnetic field at a speed of 
at an angle of 37 degrees relative to the magnetic field direction. If the magnetic field strength is 1.2 T and the charge of the particle is +e, and the radius of the helical path is 8.9 cm, what is the particle’s mass?
a. 
b. 
c. insufficient information given.
d. 
____ has (have) wavelengths that are shorter than visible light. I. Gamma-rays II. Ultraviolet light III. Infrared radiation IV. X-rays
a. I & II b. I & IV c. II & III d. II, III, & IV e. I, II, & IV
Shown here are astronomical objects located at different distances from Earth. Rank the objects based on their distances from Earth, from farthest to nearest.
The moon's acceleration is directed
A) forward, along its direction of motion. B) outward, away from Earth. C) zero. D) backward, opposite to its direction of motion. E) inward, toward the center of Earth.