Recent content by snbose

Here are my 2 cents... Cent 1: May be its a good idea to tap the energy in an indirect way. That is do not store it in a capacitor - because the capcitor's die-electric would break down. The air actually broke down to make way for the lightning so... Maybe we can send the discharge thru a...

On a very high level you would need a few things. But as others said - there is no "easy" equaton. And I doubt you will get a good answer because the velocity might require an extremely powerful kick that may deform the fotball for good. However academically thinking I would approach the...

I am not sure what you meant by "DIRECTLY" measure the frequency. One way would be to use a diffraction grating and using a collimated beam of the light. In fact you can use other interferometers for this purpose too. Thanks -SNB

This is a good experiment. 1. Parallax would perfectly hold true with the floating-real image. You can actually hold a pencil where the image originally appeared (before you removed the screen) and move your head sideways and the pencil's position to detect the exact location of the image...

Solution: At z=0 (sea level); g=a Say at height x the accelarion due to gravity is 99% i.e 0.99a. This is the height where the weight will be 99% too (F=mg). So 0.99a=a - bx. x = 0.01a/b.

I don't think so. The explanation you are suggesting is new to me. It is true that in our case while you are not equating "separate" forces but you are still equating two "same" force. There is no restriction in using the word "equation" whether the type of entities are "separate" or "same"...

Thats right DB.

Why are you not using the equation GMm/r^2 = mv^2/r to determine v?

Coulomb's law is based on experiment. It was not deduced. Just like Newton's force law, P=mf. It is true that Johannes Keplar and Tycho Brahe's research preeceded Newton's discovery of the inverse sqare law,but Newton 'historically' arrived at the inverse square law independently. It was...

Vinter, It does not matter if the stars are fixed. All matters is they are far far away and therefore APPEAR stationery. Other than that, as you said the only force on the stone was the string-tension, which is right..makes me wonder what ambiguity you expected in the first place when you...

Theories or postulates , can turn out to be incorrect. Thats not the point. We are trying to state what exactly is a postlulate and what are the thoughts behind formulating one. Whether it turns out to be a correct one or not is a different story. Perhaps I was oversimplifying the idea of a...

Bohr formulated these in postulates, which means they were assumptions. These postulates clearly states that the chosen orbits are exceptions to classical electromagnetic theory. This is not new in physics. You are allowed to make assumptions and then lead to a theory. If your theory stands the...

The testing procedure will be a cumbersome one. You will need to measure the Voltage across the load and Current at regular intervals, take their products and plot it against time. Then measure the area under the curve. You may use a Wattmeter so you don't have to measure V and i and multiply...

[FONT=Verdana]I am not familier with the exact details of this experiment. But its a good idea to calibrate your setup. The problem as it seems from the description is some component in the circuit is tending to reduce inductance. What can reduce inductance? Parasite Capacitance. To determine...

Righto! Maxwell's equations on EM Waves will provide the most elegent proof of Snells Law, Laws of Reflection and all the rest. You can read it from David Griffits "Intro ...to Electrodynamics".