Answer:
B. If isolated from a eukaryotic cell, mitochondria can no longer survive and reproduce on their own.
Well, that's easy to answer when we realize that "First Quarter" isn't talking about a 'quarter' of the Moon being illuminated. It's talking about a 'quarter' of the time that the complete cycle of phases takes.
"First quarter" means that 1/4 of the time from one New Moon to the next one has passed, and there are 3/4 of the cycle left until the next New Moon.
-- roughly 3/4 of a month to go
-- roughly 3 weeks to go
-- actually 3/4 of (29.531 days)
-- actually 22 days 3.6 hours until the instant of the next New Moon.
But Haley doesn't actually need to wait that long. You can't see the moon in the sky for 1-2 days before the New Moon and 1-2 days after it. So Haley really only has to wait like 20 days until there's no moon in the sky to interfere with her observations.
________________________________
Did you notice what I noticed ?
What if Haley stays interested in Astronomy for many years, gets really serious about doing observations regularly, and one day she discovers a comet ! These days, comets are named for their discoverers, so if that happened, we would have TWO of um !
<h2>Have a Good day!! (♡_♡)</h2>
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Answer:
Exercise 1;
The centripetal acceleration is approximately 94.52 m/s²
Explanation:
1) The given parameters are;
The diameter of the circle = 8 cm = 0.08 m
The radius of the circle = Diameter/2 = 0.08/2 = 0.04 m
The speed of motion = 7 km/h = 1.944444 m/s
The centripetal acceleration = v²/r = 1.944444²/0.04 ≈ 94.52 m/s²
The centripetal acceleration ≈ 94.52 m/s²