Recent content by Fazza3_uae

Thanks again for the clarification. Hmmmm... why tan(theta) why not cos(theta) ...?? You have answered same question before and i want to understand it 2 .. https://www.physicsforums.com/showthread.php?t=328964 check the link . If i was answering the question i would say the...

yup , i have done it. thanks a lot NvN. all credit goes to u . thanks a ton.

wow ..thx a ton rl.bhat. whould u tell what expression must i use if the question says the voltage across the inductor ?? and how did you get Vc-Vl why it not Vl-Vc ?? thanks again ..

Here is the problem n = -3i + 3j + 9k it must be -9k Not +9k

what does acceleration equal .. ?? Change in what / change in what ... ?? Find the initial and final velocities and change in time and u r done. ^^

The current in the circuit ...?? Homework Statement An AC voltage of the form V = Vmax sin 2*pi*f*t , with frequency 22 Hz and maximum voltage 763 V, is applied across a 17 W light bulb. When the voltage is first applied. a) what is the current through the circuit? Three Choices ...

Determine the value of the inductance ...?? Homework Statement Consider a series RLC circuit. The applied voltage has a maximum value of 210 V and oscillates at a frequency of 76 Hz. The circuit contains an inductor whose inductance can be varied, a 900 ohm resistor, and a 1 μF...

Ok , i have read the textbook and found the difference b/w the Ip Or J and I I found that the rectangular second moment of area I = pi*(r4)/4 Thanks NvN. Now i have one more question how to find T the torque here : \tauxy = = + T*c / I T = ?? Thanks Pongo38 for the respond i...

Ideasrule told you that ... B=2.6 mT when I=3.8 A ,,,,,, So find L the length of the solenoid by this equstion : B=μ0*N*I/L Where , B = 2.6e-3 T N = 30 turns I = 3.8 A So L = ? Then substitute the value of L in this equation to find the Inductance of the Solenoid : L...

I think that it is correct for anti-parallel case. 30 A for each wire.

Ok i will not change anything . Hmm , Why it is divided by 4 what is the difference b/w this and J When i calculated J i used R the radius of the shaft not the diameter. Here you divided by 4 which means to me that r here represents the diameter not the radius... am i right ??

http://img268.imageshack.us/img268/1417/1copyr.jpg Ok, I switched the z & y axes in my diagram but why u did that ...?? What about the location of stresses are they going to stay on there old localtion after switching...?? (( In this case I think that there woulb no more σy or \tauxy...

thx for ur responding. So shall i take the nearest answer which is 500 Kg or what ..??

The final Step Find the principal stresses and using the given factor of safety and the yield stress of steel calculate the allowable Load. I think that ,, σx = 0 σy = + M*c / Ip , M = 1.1228e5 *P , c = 0.009525 m , Ip = 1.2929e-8 \tauxy = + T*c / Ip , T = ?? Now...

Homework Statement The motor of an elevator generates 12000 Watts of power when moving the elevator at constant speed of 2 m/s.what is the mass of elevator in kg ...?? There are 5 options for the answer. a) 500 Kg b) 400 Kg c) 300 Kg d) 240 Kg e) 200 Kg Homework...