Recent content by Bob Loblaw

Thanks! I guess I was seeing 'jiggling' as more lateral movement.

Homework Statement A student bumps into a tray of jello. The lime jello is jiggling side to side faster than the orange jello. Both jellos have the same spatial dimensions. Which statement is true? Answer: Lime jello has a higher shear modulus than orange jello Homework Equations...

"DNA waves and water" Hello all, I've tried to keep in touch with the physics world in my life beyond academics and I came across this paper: http://arxiv.org/PS_cache/arxiv/pdf/1012/1012.5166v1.pdf On one hand I think "this guy is a Nobel prize winner" and on the other hand I am...

Blast from the past! I have since moved past physics and on to medicine so things worked out well enough I suppose.

Homework Statement A series RLC circuit has a 0.19 mF capacitor, a 16 mH inductor, and a 10.0 resistor, and is connected to an ac source with amplitude 9.0 V and frequency 60 Hz. (a) Calculate the voltage amplitudes VL, VC, VR, and the phase angle phi . VL = V VC = V VR = V...

The junction rule is used here and you applied it correctly. Start at the positive end of the battery (the longer bar) of the 8v source. The perimeter loop should give you: 8v-110I1-50I3-50I1 The left hand loop gave me: 4v-40I2-51I3. Remember when you cross a resistor in the direction...

Homework Statement http://img207.imageshack.us/img207/1685/p1854altco4.gif Find the unknown emf and the unknown currents in the circuit below, in which R = 3.48 . Take the positive direction for current flow in each branch to be upwards. EMF = V left branch= A right branch= A...

self-solved it. 180cm2 is .018m2, not .180m2 as I have recorded.

[SOLVED]Dielectric help Homework Statement To make a parallel plate capacitor, you have available two flat plates of aluminum (area = 180 cm2), a sheet of paper (thickness = 0.10 mm, k= 3.5), a sheet of glass (thickness = 2.0 mm, . k= 7.0), and a slab of paraffin (thickness = 10.0 mm, k=...

Thank you, Leong.

That answer was accepted. Thank you. If you have a minute, would you mind telling me how you came up with that?

Tried that earlier and it did not seem to work.

Thanks for the reply. I took 2(9e9*8e-10)/1.7^2 and came up with 4.98 which did not seem to work.

Homework Statement Two equal charges (Q = +0.80 nC) are situated at the diagonal corners A and B of a square of side x = 1.2 m as shown in the diagram. What is the magnitude of the electric field at point D? Homework Equations E=kQ/r^2 The Attempt at a Solution First I converted...

I got it. I needed to multiply out 6*pi to get its numerical value 18.85 and enclose the argument of the cosine function in parenthesis. 11cos(18.85t) worked.