The angle between two plane mirrors that meet at one edge is 45°. The change in direction of a ray that strikes the first mirror at a 60° angle of incidence when that ray reflects from the second mirror is
a. 0°.
b. 45°
c. 90°
d. 150°
e. 270°
D
Physics & Space Science
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The Moon's albedo is ______________
Fill in the blank(s) with correct word
Physics & Space Science
A _________ has a radius of about 10 km and is supported by the pressure associated with degenerate neutrons
a. black hole b. neutron star c. white dwarf d. supernova remnant e. red dwarf
Physics & Space Science
An electron is moving at
m/s at an angle of 40
to a 0.80 T magnetic field. What is the magnitude of the acceleration of the electron?
A. 
B. 
C. 
D. 
E. 
Physics & Space Science
Which statement about Jupiter is true?
A. It is more massive than all other planets combined. B. It may become a star in about a billion years. C. It is the least dense of the Giant Planets. D. It has a solid core of ice about 1,000 km under the visible surface.
Physics & Space Science