Recent content by Bengo

Thank you all for the help! But I'm still very confused. I keep thinking the image has to form behind the focal point because in my physics class we drew these diagrams similar to those seen here with the giraffe http://www.olympusmicro.com/primer/anatomy/magnification.html . So if an object is...

I never could understand this: the lens focuses light onto the retina so shouldn't the distance between the lens and the retina be the focal distance? It does not seem to be the case while I was trying to look around for the answer on the internet. And since light is focused on the retina, the...

Oh duh! Don't know what I was thinking. Thank you

One of the answer explanations in practice book states "student 2 says that the solubility of carbon dioxide in water decreases as the temperature increases. It would be best concluded from this statement that the process of dissolving carbon dioxide in water is exothermic." Can someone...

I also don't quite understand what is meant by voltage is a property of the field or that it is position dependent.

When you are told that V is the voltage at a given point in an electric field and voltage is the difference in potential energy between two points/charge, where is the other point supposed to be? Thanks

Homework Statement When an instrument plays a note, the resulting sound is a combination of all the possible harmonics for that instrument in its momentary configuration. For instance, a musician changes notes on a violin by pressing the strings against the neck of the instrument, thus...

Homework Statement I don't understand how momentum is conserved in Newtons cradle. If I look at the component vectors for the initial ball on the left that I raise, one component points down and one points to the right but then looking at the vector components on the ball that moves on the...

That does clear things up. Thank you very much

I've come across a few problems where it seems like momentum is acting like a force. For instance take a man wearing springs on his shoes who jumps high in the air and lands. The force down is mg and as he compresses the springs the force up is kx. At some point mg=kx but how can the man...

I thought there is less opportunity for interference since there are more slits. I've read more about interference but it's still not clicking with me

Hello, I'm having a hard time understanding why diffraction grating spots are narrower than those produced by a double slit set-up. I would really appreciate a conceptual understanding but math works too. Thank you

Ok I'll go with that because it's what I was thinking too. Thank you!

Well I was reading a section on charging/ discharging capacitors and this is what it said: charge on a capacitor builds up on the capacitors plates exponentially, indicated in the passage by the repeated appearance in the charge equation of e^-1, the inverse of the natural log e. And I think the...

Why is e^-1 the inverse of natural log e? Thank you