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Oh ya so if it was closed then we wud avoid B ? and it would be 3 kw ryt?
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Physics: Post your doubts here!
- Thread starter XPFMember
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Nice site!! Tnx!
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http://www.xtremepapers.com/papers/...nd AS Level/Physics (9702)/9702_w11_qp_22.pdf
qestion 4 part- 4, shouldnt the charge keep moving down!!! because its not negative, so despite increase in force, charge will go from positive to negative!!
qestion 4 part- 4, shouldnt the charge keep moving down!!! because its not negative, so despite increase in force, charge will go from positive to negative!!
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http://www.xtremepapers.com/papers/...nd AS Level/Physics (9702)/9702_s10_qp_23.pdf 2 a ii, how is it 2.08V, can anyone show me??
there is no 2 aii :/
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um first of all it was question 1 a ii....ok and yes the answer is 2.08 because as u answered in the first part a change would be +or- 0.0205...so maximum vlaue must be 2.05 + 0.0205=2.0705..then he said in the question that there is +or - 1digit..so 1 digit means 0.01 so 2.0705+0.01=2.0805..wish u understood.
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heyy can some1 help me wiv Q15 here hasnt da height decresed by half not 1/4??
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Hello. can anyone post the link from o-levels book of the electromagnetic ball release system. My sir said to review it for tomorrow's paper.
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well an antinode is 1/4 of a wavelengh right? so given that l=45cm the antinode is 45 cm and wavelengh is 0.45x4=1.8 m aand u calculate the frequency from v=fxwavelengh
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Plz anyone help me understand how Q. 2c of Oct/Nov 2011(21) is done..
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Plz anyone help me understand how Q. 2c of Oct/Nov 2011(21) is done..
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Show that a 100W lamp connected to a mains supply of 240V will have the same current as a 5W car lamp connected to a 12V? ans- current in both is 2.4A
can someone explain =D
can someone explain =D
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power is the rate of doin work nd work is fxd then p=(fxd)/t and d/t is v then p=fv......and post da whole question 4 da cyclist
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http://www.xtremepapers.com/papers/...and AS Level/Physics (9702)/9702_s07_qp_2.pdf
in question 2 (c)(i) why arent we using equations of motion?
in question 2 (c)(i) why arent we using equations of motion?
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(i) take moments about p,clockwise=anticlockwise,so 2.4x0.45=1.2xtension and 0.45 came from 0.75-0.30 cause da weight is at da center since rod is uniform (ii) sum of upward forces= sum of downwards so tension in A is 2.4-0.9
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actually da current in both will be 0.42A cause p=IV then I=P/V
ty. and this is the whole question basically. A cyclist is travelling at constant speed so why will his chemical energy not convert to kinetic energy. I know that the energy change will be kinetic to heat and sound energy but why will the chemical energy not be converted to K.e thts the question.
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i knw its 0.42 but in the book it says its 2.4