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i see... kinda same situation eh?i ned 2 revise 4 hubbles constant and also stars a bit. i still hve sme ques's im unable 2 solveand nuclear physics lil only and thermal phy also i hve 2 read once again and thts all wat i can do
Q(58) in astrophysics i don kno even if we hve 2 kno abt tht and Q(66) last parti see... kinda same situation eh?
Which questions btw? Lemme see if I can help with those maybe....
Lemme check... Just 2 mins pls... I'll brb from a quick dinner n tell u, is that ok?Q(58) in astrophysics i don kno even if we hve 2 kno abt tht and Q(66) last part
ya sureLemme check... Just 2 mins pls... I'll brb from a quick dinner n tell u, is that ok?
tytand 1 more que Q(67) in astrophysics whn they ask abt ratio thnx alotLemme check... Just 2 mins pls... I'll brb from a quick dinner n tell u, is that ok?
bt plz send me the way 4 ths ansi wrote it ths way can u tel me where is my mistakeand 1 more que Q(67) in astrophysics whn they ask abt ratio thnx alot
In Q58 which part do u wanna know?Q(58) in astrophysics i don kno even if we hve 2 kno abt tht and Q(66) last part
for this 1 we need to use g = GM/r^2 so 400 times less massive means mass is less by 400 but r is inc by (15)^2 ; 225/400 = 9/16and 1 more que Q(67) in astrophysics whn they ask abt ratio thnx alot
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u can substitute an do it, but why do the hassle when u can use simple ratio
But either way is fine IF u dont mess up where u substitute the numbers yes it isIn Q58 which part do u wanna know?
The last part is just that we need to put both the fields equal, and find R
like GM/R^2 = Gm/r^2 and then solve for R
for this 1 we need to use g = GM/r^2 so 400 times less massive means mass is less by 400 but r is inc by (15)^2 ; 225/400 = 9/16
(is that correct btw?
ok is my way correct?and i hve doubt on the 1/225 bcz i cancelled the rest so can i take reciprocal or no?> and can u send me the way u did it?
yes it isyes it is
I did it just like I wrote it there n yeah u need to take a reciprocal cuz its inversely proportional so i'll take reciprocal for 1/225 bt i wil nt change the others?is tht ok?yes it is
i circled my que jst c if tht's ok?yes it is
meaning? U need to make it 1/225 in the denominator, so it comes up n becomes 225 while u take the 400 down
Yup! But even the 400 needs to go up
yameaning? U need to make it 1/225 in the denominator, so it comes up n becomes 225 while u take the 400 down
dats how it is
hmm how can u plz jst show me cuz i fel wat i wrote is wrng isn't it?Yup! But even the 400 needs to go up
Its not wrong... i umm.. dunno how to do it ur way
bt i thnk we must show our way ryt? u kno i hve prb wth maths thts y im affraid if i tok reciprocal 4 1/225 and i left 400 down its wrng so im confused i'll send u the working i did and show u clearly wat i meanIts not wrong... i umm.. dunno how to do it ur way
I jst did it by reasoning it... If it is 400 times less mass, then divide by 400 (inversely related) , if it is 15 times nearer, then multiply by 15^2 (directly related)
225/400 = 9/16
well, imma right it just like what I wrote there
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