Recent content by donkeycopter

Homework Statement A 100g mass moves on the end of a spring with force constant . It is released with an amplitude 0.2m. A damping force acts on the egg. After it oscillates for 5.00 s, the amplitude of the motion has decreased by 0.1m.Calculate the magnitude of the damping coefficient ...

nobody knows?

I think it's very similar to http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=148", only instead of 'looking at a thumbtack from the side' it's a shadow - basically the same thing.

A ball is spun in a vertical circle on a string. A light is shining from the side of the circle so that a shadow of the balls motion is shown on a wall behind it. The shadow is simply a circle moving up and down in a straight line (I can't attach the image). The amplitude of the shadow is 0.5m...

What graphs should I draw? We did an experiment using a calorimeter in class, where we dropped a hot piece of metal into water in the calorimeter. We measured initial temp of metal + water, and the final equilibrium temperature. This allowed us to calculated the specific heat of the unknown...

We did an experiment using a calorimeter in class, where we dropped a hot piece of metal into water in the calorimeter. We measured initial temp of metal + water, and the final equilibrium temperature. This allowed us to calculated the specific heat of the unknown metal (we also had the mass...

But that's not the point. The textbooks says the specific heat capacity will be LESS, because heat is lost through the calorimeter, but I don't understand WHY.

Oh, it's an old manual calorimeter in which you just stick a thermometer in the whole in the lid.

Hi, I just did a specific heat capacity test using a calorimeter, and the specific heat capacity I found (using heat gained = heat lost) is less than the real value. The problem is, I expected it to be more. I mean heat will be lost through the calorimeter, meaning that a greater amount of...

Hi, I have to pick one of these great scientists to write a middterm item on, so basically I'm curious about what you personally think would be the easiest answer to argue to this question: Which out of Galileo, Kepler or Newton was of the greatest significance in changing the scientific...

I'm sorry, I don't understand your reasoning? I'm not asking for an answer, I'm asking for an explanation of a concept. I have written all that I know 'through compressions and rarefactions' and I was hoping that somebody could explain how this is put into practice for me. How can I write an...

Actually, it isn't a homework question, it would be a pretty horribly worded question if it was! :) I'm just trying to get a better understanding of the concept. Thanks for the response, but I don't see how it answers my question?

as I initially said, this is not a homework question. I can do all of the questions in class/homework questions, I just like to have a bit more conceptual understanding, hence I'm asking for an explanation of the concept here. I just asked for 3-4 sentences in the hope that you would give a more...

does it matter?

Basically I just don't know how I would answer that sort of question -what would your response be if it had to be 3-4 sentences, for example.