Recent content by colonel

Suppose there is a positively charged wire inside a negatively charged cylinder. What would be the net external electric field? Would I first need to combine the charges, or can I just combine the separate fields?

Now if there is wind involved, would only f(actual) change?

If a source and detector are moving towards one another, for the general doppler equation, would this be considered the source moving or the detector moving?

I would be intensity, in watts/squared metre.

If 1000 Hz corresponds to I = 10^-12 , then how do you find I for other given frequncies?

Hi, in a simple spring-mass system consisting of two identical springs, how would you treat the springs? Would Hookes equation be F = kx + kx?

I want to find when the pressure of a diver is 10X that when she is on the surface of the ocean. I know that at the surface, the diver experiences a pressure of 1 atm. But how do I go about finding the pressure under water? Do I have to consider teh partial pressure of water?

Thank-you for replying. There is a plastic funnel for the softball. Attached to the funnel are two surgical chords, about 1 m in length each. The funnel and the two chords form the "slingshot". To measure the spring constant, I hung the "slingshot" from a bracket on the wall. In this...

Imagine you have two chords attached to a softball holder. The spring constant is 300, measured when the chords were 10 cm apart. Now if the distance between the unattached ends were increased, does the spring constant change? Also, say the distance between the chords are increased, the...