Ok..1 : 1 ratio.
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Ok..1 : 1 ratio.
Not understood?Ok..
So in V=W/Q. V is potential and W is weight or work?Idividual sum of electric potentials. That 0.02 is the one small division on y axis. Here :~
View attachment 60485
Potential difference is the work done per unit charge. So yes W is work done.So in V=W/Q. V is potential and W is weight or work?
You do get 3 marks but refer to point masses rather than just stating masses. Because one mark is for stating point masses in all the marking schemesCan anyone state what is newtons law of gravity?
I write like this : It states that it is the force of attraction between two masses which is directly proportional to the product of that masses and inversly proportional to the square of the sepration of that masses.
If I write this, wont I get 3 marks?
Newton's law of gravitation states that the force of attraction between two point masses is directly proportional to the product of their individual masses and inversely proportional to the square of their separation (or square of the distance between their centres).Can anyone state what is newtons law of gravity?
I write like this : It states that it is the force of attraction between two masses which is directly proportional to the product of that masses and inversly proportional to the square of the sepration of that masses.
If I write this, wont I get 3 marks?
Thanks.You do get 3 marks but refer to point masses rather than just stating masses. Because one mark is for stating point masses in all the marking schemes
which part u dnt understand? i will explain u that as i dont think there is ny other approachc ( 2 )
...any better approach than this? i didnt get itView attachment 60496
1. Electric field strength inside the sphere is zero. From graph we can see E to be zero at some point, thus we can say spheres are conductors.Can someone please explain these parts??
1. State the evidence that the spheres are conductors
2.state and explain the distance x at which the rate of change of potential with distance is a;maximum b;minimum
View attachment 60498
c part 2which part u dnt understand? i will explain u that as i dont think there is ny other approach
I mean what u dont get in the explanation part??c part 2
k i knw tht was dumb ..i got it ..tyI mean what u dont get in the explanation part??
Work done = F*change in x.
Work done = Ep
Ep = F * 4 * 10^-2
This was the first way.
We know Ep = GMm/r
Now we know radius increases every year by 4cm.
So we know radius is changing so we can use the formula Ep = GMm(1/r1 - 1/r2)
r1 = orignal radius
r2 = 4 * 10^-2
This was the second way explained.
Now I asked u, what u dont get in this explanation, I will clear that..
Doubt is a doubt!k i knw tht was dumb ..i got it ..ty
isn't r2 supposed to be 4*10^-2 + r1? As it says 4cm is added to it every year? :/I mean what u dont get in the explanation part??
Work done = F*change in x.
Work done = Ep
Ep = F * 4 * 10^-2
This was the first way.
We know Ep = GMm/r
Now we know radius increases every year by 4cm.
So we know radius is changing so we can use the formula Ep = GMm(1/r1 - 1/r2)
r1 = orignal radius
r2 = 4 * 10^-2
This was the second way explained.
Now I asked u, what u dont get in this explanation, I will clear that..
Oh yes!! A silly error! Thanks for that, I will add it to my explanation.isn't r2 supposed to be 4*10^-2 + r1? As it says 4cm is added to it every year? :/
what is the b part?View attachment 60501
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