Physics: Post your doubts here!

[anwerosama]

rviboy and arshiful I will answer ur questions tomorrow did half ov dem

 

[Arshiful]

pls help me in 6 a ii. with an explanation thank you in advance.....

 

[Dayyanah]

can anyone tell me how to describe an experiment to determine the acceleration of free fall using a falling body?
i know im being a pain now

 

[rz123]

yes back pain....no pain no gain but u must try hard before posting here

here u go : http://mypages.iit.edu/~rcoleman/apmanual.html

 

[Dayyanah]

thanx

 

[Swoorup]

The frequency of vibration can be varied. The two sources always vibrate in phase but have
different amplitudes of vibration.
A microphone M is situated a distance 100 cm from S1 along a line that is normal to S1S2.
As the frequency of S1 and S2 is gradually increased, the microphone M detects maxima and minima of intensity of sound.

(a) State the two conditions that must be satisfied for the intensity of sound at M to be
zero??????????????

 

[Dummy36]

:unknown: :unknown: :unknown: :unknown: hi all.... plz tell me how to do M/J 10....q.6 of P22...
thx in advance...

 

[hikarigenzo]

Hi,please help me with 3c(i) and c(ii)

For c(i),the question asks for the velocity as the ball leaves the plate,but why must we use displacement as 0.98m? 0.98m is quite a distance from the plate

For c(ii),why you need to add up both velocity? If we consider either up or down as positive direction, shouldn't it be (6.2-4.4)m/s ?

Question 2(b) ii (2), why you need cube root it?

http://www.xtremepapers.com/CIE/Interna ... _qp_22.pdf

Please help me,this is urgent. I will take my test 14 hours from now.

Thanks. God bless you.

 

[Dummy36]

which paper is dat?? nd which question??

 

[Abdulrab]

can anyone please help me in understanding the concept of leading and lagging between two waves !!! i would be thankful if anyone try to clear it with the help of a diagram !! thanks

 

[hikarigenzo]

Hi, help me again pls.

How to calculate 6(b) for the second one?

Just a short calculation. But I do not know how to do

Thanks

 

[yuliana95]

Hi, help me again pls.

How to calculate 6(b) for the second one?

Just a short calculation. But I do not know how to do

Thanks

R=V/I
From the graph, V=1.5V and I=0.1A
R=1.5/0.1
R=15

 

[Abdulrab]

please answer my question tooo please

 

[yuliana95]

please answer my question tooo please

what is your question?

 

[hikarigenzo]

Hi, help me again pls.

How to calculate 6(b) for the second one?

Just a short calculation. But I do not know how to do

Thanks

I forget to put the link

http://www.xtremepapers.com/CIE/Interna ... 8_qp_2.pdf

 

[rz123]

^i remember its solved in previous pages

 

[Swoorup]

Help how to attempt design questions in P5

 

[hikarigenzo]

^i remember its solved in previous pages

Thanks man. I searched until page 23 but still cant find it. Nevermind, I'll find the solution tomorrow

 

[hikarigenzo]

Hi,please help me with 3c(i) and c(ii)

For c(i),the question asks for the velocity as the ball leaves the plate,but why must we use displacement as 0.98m? 0.98m is quite a distance from the plate

For c(ii),why you need to add up both velocity? If we consider either up or down as positive direction, shouldn't it be (6.2-4.4)m/s ?

Question 2(b) ii (2), why you need cube root it?

http://www.xtremepapers.com/CIE/Interna ... _qp_22.pdf

Please help me,this is urgent. I will take my test 14 hours from now.

Thanks. God bless you.

Answer this please

 

[yuliana95]

Hi,please help me with 3c(i) and c(ii)

For c(i),the question asks for the velocity as the ball leaves the plate,but why must we use displacement as 0.98m? 0.98m is quite a distance from the plate

For c(ii),why you need to add up both velocity? If we consider either up or down as positive direction, shouldn't it be (6.2-4.4)m/s ?

Question 2(b) ii (2), why you need cube root it?

http://www.xtremepapers.com/CIE/Interna ... _qp_22.pdf

Please help me,this is urgent. I will take my test 14 hours from now.

Thanks. God bless you.

Answer this please

3(c)(i) Since what we are looking for is the vertical speed, so we use the vertical displacement of 0.98m which is given in the question

I'm not so clear about the rest.. I'm sorry..