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good luck ! and thanks for your help tooand thanks alot for all the help i recieved from every 1...
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good luck ! and thanks for your help tooand thanks alot for all the help i recieved from every 1...
Whats the answer, how did you solve it. I think you need the thermistor resistace?calculate current in 6 kiloohm resistor
But why didJazakallah brother
But why did you multiply (0.389^2 I ) x (0.331 ?Here it is:
From Part i) The Intensity that is reflected back from the muscle bone boundary is 0.331 i.e 0.331 x 0.389 I
The key to this part is that you have to deduce the Intersity reflection coefficient from part ii).
When the ultrasound reaches the surface of the muscle, 0.661 will be reflected and 0.389 will pass through ----> 0.331 x 0.389 x 0.389 I = 0.05 I
becuase it will pass through twice so 0.389 ^ 2 , and 0.331 percent is reflected backBut why did
But why did you multiply (0.389^2 I ) x (0.331 ?
oh yea 1.5 kilo ohmWhats the answer, how did you solve it. I think you need the thermistor resistace?
we cant use centripetal force because there is NO centripetal force .. the rock is at rest at the surface !November 2011 / 43 / Question 2 a) I thought the question said they were calibrated correctly. Please explain both points in mark scheme!
Question 1 b) When do we use g.p.e = k.e and Fg = centripetal force.
If we used weight = centripetal force here, why wouldnt it work?
yeah, true. dunno whats wrong with me lol . thankswe cant use centripetal force because there is NO centripetal force .. the rock is at rest at the surface !
calibration has been done according to the linear change of temperature ... but both the quantities 'donot change linearly' so calibration has no effect . . thermometer linear change ke hisaab se calibrate kiya hai par resistance linearly change ho he nai rhi ! get it ?yeah, true. dunno whats wrong with me lol . thanks
Question 2 a ) please?
ok how about ci) 50.00 + 273.15 = 323.15calibration has been done according to the linear change of temperature ... but both the quantities 'donot change linearly' so calibration has no effect . . thermometer linear change ke hisaab se calibrate kiya hai par resistance linearly change ho he nai rhi ! get it ?
Hi guys,
Please, I need help with a few questions.
http://www.xtremepapers.com/CIE/index.php?dir=International A And AS Level/9702 - Physics/&file=9702_w07_qp_4.pdf
Can anyone tell me how to do number 10 (c)?
http://www.xtremepapers.com/CIE/International A And AS Level/9702 - Physics/9702_s11_qp_41.pdf
What is the answer of Number 6 (b)(ii)?
http://www.xtremepapers.com/CIE/index.php?dir=International A And AS Level/9702 - Physics/&file=9702_s03_qp_4.pdf
And can someone explain number 2 (a) and (b) in this exam?
Please help if you can. I greatly need it.
Jazakom Allah Khairan.
in the question the temperatures are given to two d.p so we will give the answer to 2 d.pok how about ci) 50.00 + 273.15 = 323.15
why not 323.2 , shouldnt it be 4 s.f??? because the values given are 4 s,f. WHy is the answer 5 s,f?
Hi guys,
Please, I need help with a few questions.
http://www.xtremepapers.com/CIE/index.php?dir=International A And AS Level/9702 - Physics/&file=9702_w07_qp_4.pdf
Can anyone tell me how to do number 10 (c)?
http://www.xtremepapers.com/CIE/International A And AS Level/9702 - Physics/9702_s11_qp_41.pdf
What is the answer of Number 6 (b)(ii)?
http://www.xtremepapers.com/CIE/index.php?dir=International A And AS Level/9702 - Physics/&file=9702_s03_qp_4.pdf
And can someone explain number 2 (a) and (b) in this exam?
Please help if you can. I greatly need it.
Jazakom Allah Khairan.
ok so s03 Q2:Hi guys,
Please, I need help with a few questions.
http://www.xtremepapers.com/CIE/index.php?dir=International A And AS Level/9702 - Physics/&file=9702_w07_qp_4.pdf
Can anyone tell me how to do number 10 (c)?
http://www.xtremepapers.com/CIE/International A And AS Level/9702 - Physics/9702_s11_qp_41.pdf
What is the answer of Number 6 (b)(ii)?
http://www.xtremepapers.com/CIE/index.php?dir=International A And AS Level/9702 - Physics/&file=9702_s03_qp_4.pdf
And can someone explain number 2 (a) and (b) in this exam?
Please help if you can. I greatly need it.
Jazakom Allah Khairan.
i explained w07 q10c earlier on this trend . . you can find it there ..Hi guys,
Please, I need help with a few questions.
http://www.xtremepapers.com/CIE/index.php?dir=International A And AS Level/9702 - Physics/&file=9702_w07_qp_4.pdf
Can anyone tell me how to do number 10 (c)?
http://www.xtremepapers.com/CIE/International A And AS Level/9702 - Physics/9702_s11_qp_41.pdf
What is the answer of Number 6 (b)(ii)?
http://www.xtremepapers.com/CIE/index.php?dir=International A And AS Level/9702 - Physics/&file=9702_s03_qp_4.pdf
And can someone explain number 2 (a) and (b) in this exam?
Please help if you can. I greatly need it.
Jazakom Allah Khairan.
go through the graphs in the file attached...it helped meThanks so much!
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