Recent content by PennStateFan1

When I was putting them in parallel I was forgetting to do the 1/Req. Thanks for the advice, as I got the answer when I went back and tried again.

Homework Statement In the circuit shown in the figure, R1 = 3.23 Ω, R2 = 5.19 Ω, R3 = 23.1 Ω, and V = 10.7 V. a) Determine a value for the equivalent resistance. http://img651.imageshack.us/i/p074figure.png/ Homework Equations Parallel is 1/R1+1/R2+1/Rn=1/Req Series...

It's the right coefficient, because it told what table in the book to use. It's probably the coding for the program. It's a new book we're using and my teacher thinks there might be mistakes.

I tried fixing the sigfigs and its still wrong.

Homework Statement A copper coil has a resistance of 0.541 Ω at room temperature. What is its resistance when it is cooled to -131.3 °C? Homework Equations Ri=New resistance R0=initial resistance a=alpha Ri=R0+R0(a(temp change)) temp change is positive when it goes up alpha...

Using my first attempt Vmax=6630 V Then 3400=.5(C)(6630)^2 C=epsilon0*A/d=(8.854E-12)A/(.00221)=.000155 A=38613.1 m^2 Can you guys figure out what I'm doing wrong?

Homework Statement A typical AAA battery has stored energy of about 3400 J. (Battery capacity is typically listed as 625 mA h, meaning that much charge can be delivered at approximately 1.5 V.) Suppose you want to build a parallel plate capacitor to store this amount of energy, using a plate...

A 29 kg object is acted on by a conservative force given by F = (-2.4)x + (-5.2)x2, with F in Newtons and x in meters. Take the potential energy associated with the force to be zero when the object is at x = 0. What is the potential energy of the system associated with the force when the object...