... Ohmygod... yeah... gonna see myself out(Original post by TheOtherSide.)
Wire we making puns instead of answering the question?
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Imperion
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- 17-03-2016 20:30
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Kevin De Bruyne
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- 17-03-2016 20:32
(Original post by TheOtherSide.)
Wire we making puns instead of answering the question?you seem to have people following you around with puns, really.
OP, I guess Maths is an easier subject to help people with and there aren't that many physics helpers around. -
TheFarmerLad
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- 17-03-2016 20:34
(Original post by SeanFM)
Don't blow a fuseyou seem to have people following you around with puns, really.
OP, I guess Maths is an easier subject to help people with and there aren't that many physics helpers around.I agree with your point; it's just frustrating when you have so many unanswered questions!
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Kevin De Bruyne
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- 17-03-2016 20:36
(Original post by MathsAstronomy12)
Sean, as you're a nice fellow, do you mind helping me with a few questionsI agree with your point; it's just frustrating when you have so many unanswered questions!
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NotNotBatman
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- 17-03-2016 20:37
Most people are doing A level. The most popular a level is maths.
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TheFarmerLad
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- 17-03-2016 20:38
(Original post by SeanFM)
I can have a look but I can't promise much more - my days of AQA A-level Physics are behind me. (gosh, 2 years ago..!)). http://www.ocr.org.uk/Images/144792-...nian-world.pdf Question 2)b) (ii)
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- 17-03-2016 20:38
Maths is cool.
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- 17-03-2016 20:41
(Original post by MathsAstronomy12)
Haha it's just this that has been bothering me for the last hour, seems relatively simple as well (pardon the pun). http://www.ocr.org.uk/Images/144792-...nian-world.pdf Question 2)b) (ii)
with
- then
so obvious conclusion is obvious.
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XxKingSniprxX
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- 17-03-2016 20:41
(Original post by MathsAstronomy12)
Whereas almost all maths questions get so many replies instantaneously -
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- 17-03-2016 20:42
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Kevin De Bruyne
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- 17-03-2016 20:54
(Original post by MathsAstronomy12)
Haha it's just this that has been bothering me for the last hour, seems relatively simple as well (pardon the pun). http://www.ocr.org.uk/Images/144792-...nian-world.pdf Question 2)b) (ii)
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Student403
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- 17-03-2016 20:58
I'm actually tempted to blame that disparity entirely on Zacken
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L'Evil Wolf
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- 17-03-2016 21:04
(Original post by MathsAstronomy12)
Whereas almost all maths questions get so many replies instantaneously
The maths place seem they know their **** but I do agree. Same with chemistry tbh.
There are facebook groups that I use where replies are pretty much instantaneous and the people there are good. Mostly as and a2 though. -
TheFarmerLad
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- 17-03-2016 21:06
(Original post by L'Evil Wolf)
I have just joined this forum?
The maths place seem they know their **** but I do agree. Same with chemistry tbh.
There are facebook groups that I use where replies are pretty much instantaneous and the people there are good. Mostly as and a2 though.perhaps we can use this thread to post any questions and hopefully this will attract more help?
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- 17-03-2016 21:10
(Original post by MathsAstronomy12)
Yeh it's the same with physics/chem and bio, all 3 tend to go unnoticed on hereperhaps we can use this thread to post any questions and hopefully this will attract more help?
They can only answer relationship type questions.
It's like trying to run the best game on a 10 year old computer. -
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- 17-03-2016 21:19
(Original post by SeanFM)
So the area that it needs to photograph is 2pir where r is the radius of the earth. So it needs to take 2pir/width photos.. I think. And that's when I get lost.
if a point on the equator moves more than 3000 km in 24/14 hrs then the satellite fails to photograph the whole surface.
a point on the equator moves 2πr in 24h... has it moved by more than the 3000 km photo width in 24/14 hrs? -
Abstract_Prism
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- 17-03-2016 21:23
Because physics is haaaaaaaaard.
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L'Evil Wolf
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- 17-03-2016 21:30
(Original post by MathsAstronomy12)
Haha it's just this that has been bothering me for the last hour, seems relatively simple as well (pardon the pun). http://www.ocr.org.uk/Images/144792-...nian-world.pdf Question 2)b) (ii)
I put the answer below.
(Original post by Zacken)
What's the problem? Consider (circumference of equator/width of photograph) =with
- then
so obvious conclusion is obvious.
But it ends up being more or less right.
mathsastronomy when you read meticulously ocr say that "The orbit of the satellite passes over the Earth poles". Visualise the earth's spherical shape and you realise it passes earths equatorial orbit twice. By this it isn't going over a point on the equator like a geostationary satellite would rather over and under if you what I am trying to say
Suppose that is why they boldened the first sentence to emphasise it.
Therefore 13.4/2 = 6.7 orbits
Since the orbital period of the satellite is less than 14.2 you can say that the pictures can be taken.
Also zain? -
TheOtherSide.
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- 17-03-2016 21:34
(Original post by Imperion)
... Ohmygod... yeah... gonna see myself out
(Original post by SeanFM)
Don't blow a fuseyou seem to have people following you around with puns, really.OP, I guess Maths is an easier subject to help people with and there aren't that many physics helpers around.
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- 17-03-2016 21:34
(Original post by L'Evil Wolf)
Actually that yields 13.4
But it ends up being more or less right.
Therefore 13.4/2 = 6.7 orbits
Since the orbital period of the satellite is less than 14.2 you can say that the pictures can be taken.in there.
Also zain?
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