physics mcq help needed! urgent!

[zxcvbnm]

november 02, question 9

[zxcvbnm]

same paper, number 10

[zxcvbnm]

same paper, number 10

also, question 32

[halosh92]

november 02, question 9

check for homogenity

[halosh92]

same paper, number 10

Q32) for +1
R=V/I
I=45/1000   (convert from mA to A)
R=1/(45/1000)
=22 ohms which is nearest to 20
and about -1V
its always infinte

[zxcvbnm]

Q32) for +1
R=V/I
I=45/1000   (convert from mA to A)
R=1/(45/1000)
=22 ohms which is nearest to 20
and about -1V
its always infinte

thankyou so much!

[halosh92]

thankyou so much!

np;)

[thecandydoll]

Does anybodyy have notes on moments and torque,i just dont get it =( 

[ruby92]

is there a formula linking phase difference and wavelenght?

[zxcvbnm]

is potential gradient included in AS? if so, then please can someone explain it?

[sabrina]

hi guys
 can someone plz help me with maj\june 2002 Q18. i m trying my level best but cant understand n do the question.
thanks in advance.

[highly_ambitious]

may/june 2003 q22..how to do? I'm not getting the right answer~!

[halosh92]

hi guys
 can someone plz help me with maj\june 2002 Q18. i m trying my level best but cant understand n do the question.
thanks in advance.

consider p.e at P as X. So p.e at Q is (X-50) J
k.e at P is 5kJ...that means p.e+k.e at P is X+5 kJ and W.d against friction is 10kJ. therefore at the lowest point it has (X+5)-10 kJ of energy=X-5 kJ
p.e at Q is X-50...the difference is....k.e at Q is given by
X-5-(X-50)= 45kJ

PS.i didnt solve this someone else did

[highly_ambitious]

may/june q22..plz somebody help me in this question. I'm not getting the correct answer.

[halosh92]

may/june q22..plz somebody help me in this question. I'm not getting the correct answer.

which year???