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Hey,
So question 4 (b) (i) is the area between the two lines, because that is the energy lost
For 4 (b) (ii), you need to find the area between the two lines, by counting squares.
Hope that helps.
All the best.
suppose B as pivot... then take distances from it of A and ball... use principle of moments to get the force of A
.
Hello for the ripple tank question 5 c,
They asked us to draw and explain, you need to draw the ripple tank and label, you need to show a light source and label it, and draw a screen and also you need to tell them that you use a video camera to observe the waves.
For 5b, if you look at the wave T1, you'll see that 1 Wavelength is 6 blocks.
We know that 1 Wavelength is 360 degrees.
It's given that T2 lags 60 degrees behind.
So we do, 360---> 6 blocks
60-----> ? Blocks
So this means that t2 lags behind t1 by one block.
When you draw t2 it has to have the same Amplitude A as of T1
Superposition principal : When two waves meet, total displacement is the vector sum of the individual displacements of the waves.
If I have any mistakes someone correct me
The effect resistance will be less in parallel when the resistance in R1 is zero, but for the resistance to be at a minimum in series, R1 should have the greatest possible resistance ie 400 ohms so that the effective resistance if R2 will be relatively less, hence decreasing the pd across it
Even in momentum right?
The effect resistance will be less in parallel when the resistance in R1 is zero, but for the resistance to be at a minimum in series, R1 should have the greatest possible resistance ie 400 ohms so that the effective resistance if R2 will be relatively less, hence decreasing the pd across it
BTW this was one confusing question
But for the effective resistance to remain constant, the resistance of R2 in parallel has to be greater than than in series
Um its October November 2010 paper 21.. If you can open it on google please :$ because I am from my cellphone
http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_s13_ms_23.pdf
Uhm what was the question number? I will tryUm its October November 2010 paper 21.. If you can open it on google please :$ because I am from my cellphone
YES! there are a number of them.You can check in your physics coursebook pg#554
YES! there are a number of them.You can check in your physics coursebook pg#554
m just starting dunno when i'll finish :'(
Up to you, if you're too lazy, you can rely on logic
book name???YES! there are a number of them.You can check in your physics coursebook pg#554
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