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Ummm okay........ But what I don't get is why isn't it B or C then?A standing wave is produced when two waves are moving in opposite direction to each other which have the same frequency, wavelength and speed. So when the two loudspeaker are positioned in opposite direction a standing wave is produced
I don't think I have the proper explanation behind it but how I did it was that x+y has to be 50 and x has to be the smaller one......... This leaves us with only option B.......... And I think the answer is B ?View attachment 59612
Please someone explain this I have no idea how to do this.
So is C. X+Y is 50. And don't say that X is smaller in the diagram cuz it's not to scale and yes the ans is BI don't think I have the proper explanation behind it but how I did it was that x+y has to be 50 and x has to be the smaller one......... This leaves us with only option B.......... And I think the answer is B ?
Oh I never noticed the Not to scale thing..........So is C. X+Y is 50. And don't say that X is smaller in the diagram cuz it's not to scale and yes the ans is B
this is a non inverting amplifier so the formula for the gain is G=1+R1/R2http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s09_qp_4.pdf
I need someone's help with Q10 (b) please!
this is a non inverting amplifier so the formula for the gain is G=1+R1/R2
so 25=1+120/R
24R=120
R=5
sureThanks a lot for your help! Can you please help me with (c)(i) as well?
sure
ok so u need to find Vout so the formula is Gain=Vout/Vin
u already know ur gain 25 and Vin as -0.08 so Vout is 25x0.08=2V
Doubled.What happens to the spring constant if the cross-sectional area is doubled?
Which book should I chose for Physics?
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