00:01
So for this question we're asked to do number of things.
00:02
So for part a, we are asked to find the angular speed in radiance per second.
00:09
So we can say their angular speed is equal to, let's see, we have one revolution, which is 2 pi, over 24 hours.
00:25
And so then we can multiply both.
00:29
Let's see what we can say we have, let's see, if we think about 24 hours, you know that in 24, four hours, we can actually simplify this down to pi over 12 hours.
00:46
And so we take pi over 12 hours, we can multiply by 12 hours.
00:55
Actually, we can just say one hour over 60 minutes.
01:03
It's equal to our hours cancel out, which will get us pi over 720 minutes...