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I put c. That was my thinking behind it

If I got 65 what would that go to?

Hmm I said centripetal acceleration... I originally said force but then crossed out. Thus is because I used centripetal acceleration in he second past of that qn. Do you think centripetal acceleration is ok?

Lol I just had it memorized.. V=(root(GM/r))

?

So you just use the orbital velocity formula and say the mass of the planet is independent. That's what I did :)

Also why did the mass of the planet not affect it's orbital speed around the star

What was the reason for the person feeling gravity in the circle thingy lol

Oh lol

How do we know his are all right? Isn't 3 b?

Bump

Relaxation. Left it out...

These are my answers. What mark am I looking at? 1) b 2) d 3) b 4) a 5) d 6) d 7) a 8) d 9) b 10) a 11) b 12) a 13) b 14) c 15) a 16) d 17) b 18) c 19) c 20) a

These are my answers. What mark am I looking at? 1) b 2) d 3) b 4) a 5) d 6) d 7) a 8) d 9) b 10) a 11) b 12) a 13) b 14) c 15) a 16) d 17) b 18) c 19) c 20) a

LOL what did everyone have for qn 26? a and b

That's what I got. It just said magnitude tho so no need for direction.

Is qn 20 a? Lol good guess from me

What time u going to bed?

+100

Whens everyone going to bed? Is anyone actually doing an all nighter?