Author Question: A magnifying glass produces a virtual image. Indicate whether the statement is true or ... (Read 62 times)

waynest · **on:** Jul 29, 2018

A magnifying glass produces a virtual image.

Indicate whether the statement is true or false

Question 2

If a spherical galaxy of diameter 100,000 ly contained enough mass to be a black hole, what would be its mass?

A)

200 x 109 kg
B)

400 x 109 kg
C)

6.9 x 1023 kg
D)

3.2 x 1047 kg
E)

6.4 x 1047 kg