Answer:
10m
Explanation:
The object distance and image distance is the same from the mirror. so the image is 5m behind the mirror.
5+5=10
Astrophysics is the answer
we call it as well as 100 . so easey
Answer:

Explanation:
We just have to calculate what angular displacement a ball with an average angular velocity of 290 rev/min experiments in 0.64s. By definition, angular velocity
is the angular displacement
divided by the time elapsed:

Since
and
, we can covert:

Where the terms between parenthesis are equal to 1, so they just change the units. Then for our values we have:
