Recent content by DRC12

Well thanks a lot there's clear's things up

But if the compass is still then the magnetic field isn't changing is it? The compass was brought towards the charged object and then held there. Because the magnet would induce a magnetic field in these metals? and all the lab manual says is that the sphere was conducting

Another small question, does a magnetic field have an effect on a charged object that is not magnetic? and vice-versa

First, so no-one gets angry at more for posting homework in the non-homework section, this isn't for a report I'm just trying to figure out what was going on. The magnetic field on the charged object is unaffected by which end of the compass is closest to it. Because the compass is a...

In physics lab we positively charged a metal sphere then placed a compass near it and both ends of the compass were attracted to the sphere. I know magnetic fields are created by electrons, so I made the assumption the compass is attracted to the positive charge because the electrons in the...

wait for some reason I was using h=3.36E-34 instead of 6.67E-34 I don't even know where that number came from

meters I tried finding the velocity using v2=2ax and found v to be 3.43m/s then I plugged that into λ=h/mv where m=1.67*10-27kg and h=6.67*10-34 and found λ=5.87*10-8

Homework Statement What is the de Broglie wavelength of a neutron that has fallen 0.60 in a vacuum chamber, starting from rest? Homework Equations Not entirely sure λ=h/mv The Attempt at a Solution I can't figure out what the velocity is, I think it would have to do with the change...

Oh, thanks, I keep forgetting about that. I really need to start writing down the units

Homework Statement Ultraviolet light with a wavelength of 45.0nm shines on a gas of hydrogen atoms in their ground states. Some of the atoms are ionized by the light. What is the kinetic energy of the electrons that are freed in this process? I found the kinetic energy right but for some reason...

All right thanks I'm just going to assume the books wrong it wouldn't be the first time

1. Homework Statement [/b] There's a 20kg ball and two 10kg balls 20cm above it. One of the 10kg balls is 5cm to the right of center and the other is 5cm to the left of center. What is the net gravitational force on the 20kg ball 2. Homework Equations [/b] F=GMm/R23. The Attempt at a...

It's negative got it. Thanks both of you

I'm still confused about what frogjg2003 is saying

The time it takes to go from A to -A and bak then the time should be T/2-.53=.96s since it's on the other side it would be 9.4 but if you plug that into the equation 9.4=6.6cos(ωt) arccos(1.42)=ωt but 1.42 is out of the range of cos