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I got it.Can someone explain this to me?
1. PE = q x V so V = PE/q
2. E = V/r
thus substitute 1 into 2:
E = PE/qr
3. as G = PE/r, thus E = G/q and Eq = G
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I got it.Can someone explain this to me?
Ummm, if you could tell me please, What would you write?I think what the question really wants you to say (I could be wrong) is that there are DISTINCT bands in the line spectra. It's not like ALL wavelengths of light were absorbed, but rather distinct, specific ones.
You have to be careful with the wording of the question. They said: "Explain how the line spectrum of hydrogen provides evidence for..."
So you HAVE to talk about the APPEARANCE of the spectrum itself. Hope I'm making sense.
qwertypoiu what about this?How do I answer this question..? :3 View attachment 60505
If it takes 12 hours to go from low tide to high tide and back to low tide, that means it takes 12 hours to go from 1.0m, to 3.0m and back to 1.0m.
if we get 14.6 on analogue, when we sample it, do we round up or down?
my teacher says down
my book says nearest number
think i solved an exam where it was nearest number and not down
Happenslol my teacher is so bad
which p4 did u takeHappens
I did, but what I don't get it is, as quoted from the blog "Since the mass of the water is spread all over the volume it occupies, the centre of mass should be considered when calculating the (gravitational) potential energy." Why do they consider the centre of mass ? Do we generally consider the centre of mass while considering the Potential energy of an object?
Ah! Thanks!we always consider the centre of mass. else we would have to calculate the potential eenrgy of each molecule since their positions (height) are each different
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