Recent content by imationrouter03

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    So you should solve for the heat Q directly.

    im still not getting the problem right... I've used that formulat but i ended up with my previous response which was wrong. I've double checked my units.. what can i be doing wrong? they are asking for the resistance of the coil...
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    So you should solve for the heat Q directly.

    A coil is to be used as an immersion heater for boiling water. The coil is to operate at a voltage of 130 V and is to heat an amount of water with a volume of 251 cm^3 by 80.0 degree celsius in a time interval of 6.30 minutes. Use 4190 J/(kg*K) for the specific heat capacity of water and 1000...
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    Help with a Physics Capacitor Problem

    i used E=sigma/epsilon_0 and equated V=Ex with V=(sigma*x)/epsilon_0 and got the following solving for the charge q=(V*A*epsilon)/(x) which just happened to be my first wrong response... The correct answer shouldn't involve variables: A, epsilon_0, k nor C.. what am i doing wrong...
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    Solve the Crazy e/m Problem: Change in Capacitance Required for Detection

    thank u all for ur help.. the problem is finally resolved it can out to be the following: deltax=(s^2*DeltaC)/(epsilon_0*A+s*DeltaC) thanks =)
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    How Far Must a Key Be Depressed to Detect a Change in Capacitance in a Keyboard?

    srry for posting this twice, it was my mistake for posting it on the general physics forum.. since it involved homework help.. but w.e it doesn't matter now.. i appreciate ur help.. it won't happen again.
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    Help with a Physics Capacitor Problem

    well I've tried : k*E*x*C but that didn't seem to work.. it said that the answer doesn't involve the variable k nor C i don't know what to do.. i don't even think i understand the problem feedback please
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    Solve the Crazy e/m Problem: Change in Capacitance Required for Detection

    I've tried the following of deltax=s-(epsilon_0*A)/(C) but the correct answer didn't involve the variable C =/ but y would u be solving for deltax? I've also tried (epsilon_0*A)/DeltaC but the correct answer involves the variable "s" I've also tried (epsilon_0*A)/(s-DeltaS) but the...
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    How Far Must a Key Be Depressed to Detect a Change in Capacitance in a Keyboard?

    Thank you for viewing this problem, hope u can help me. In one type of computer keyboard, each key holds a small metal plate that serves as one plate of a parallel-plate, air-filled capacitor. When the key is depressed, the plate separation decreases and the capacitance increases. Electronic...
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    Help with a Physics Capacitor Problem

    I'm currently in a physicsw/calII class and I'm stuck on this problem, hope u can help me out. A parallel-plate capacitor has a capacitance of C_0 when there is air between the plates. The separation between the plates is x. a)What is the maximum magnitude of charge that can be placed on...
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    Solve the Crazy e/m Problem: Change in Capacitance Required for Detection

    Thank you for viewing this problem, hope u can help me. In one type of computer keyboard, each key holds a small metal plate that serves as one plate of a parallel-plate, air-filled capacitor. When the key is depressed, the plate separation decreases and the capacitance increases. Electronic...
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    The direction of the electric field at point P is +x direction

    Thank you for viewing this,.. here's my question i hope u can help: A ring-shaped conductor with a radius 2.30 has a total positive charge 0.125 uniformly distributed around it. The center of the ring is at the origin of coordinates O. (a)The magnitude of the electric field at point P...
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