Author Question: The image of a convex mirror is always a. virtual, inverted, and larger. b. virtual, upright, and ... (Read 87 times)

a0266361136 · **on:** Jul 28, 2018

The image of a convex mirror is always
a. virtual, inverted, and larger.
b. virtual, upright, and smaller.
c. real, upright, and smaller.
d. real, inverted, and larger.

Question 2

A spaceship from another galaxy passes over the solar system directly above a radial line from the sun to the Earth. (We measure that distance to be 1.5 1011 m.) On Earth, the spaceship is observed to be traveling at a speed of 0.80 c, for which = 5/3 . As measured on Earth it takes the spaceship 625 seconds to travel from the sun to Earth. When a scientist in the spaceship measures the Earth-sun distance and the time it takes her to travel that distance, she finds the results are respectively
a. 9.0 1010 m; 375 s.
b. 9.0 1010 m; 625 s.
c. 1.5 1011 m; 625 s.
d. 2.5 1011 m; 625 s.
e. 2.5 1011 m; 1042 s.