Recent content by Aimhigh

Thank you I think the book is not worded very clearly. According to the wikipedia page you sent me, what I have come to understand is: "The effect can be demonstrated using a rubber band with weights attached to it. If the top of a rubber band is hung on a hook and small weights are attached...

No I am not, sorry. But I could look it up

My AQA Year 12 physics textbook shows the following graph shown below Then it says: "For a rubber band, the change of length during unloading is greater than during loading for a given change in tension." I don't understand this. In the graph below, it looks to me that for a certain change in...

I have attached what I think is the solution. Please could you look at it and see if it makes sense and is right. Thanks

Homework Statement When the internal resistance is large in comparison to the external resistance, the terminal potential difference falls to a small value. This is used to make high voltage supplies safe for use in a laboratory. Explain how this makes the supply safe. Homework Equations...

Ok But if the ratio of red light intensity to blue light intensity was higher in the light from a distant galaxy... when compared to the ratio of red light intensity to blue light intensity in the light from a nearby galaxy... why do we need to bother about the spectral lines. Surely the...

Thanks phinds. If I were to be sitting on the Hubble Telescope looking at these distant galaxies with a telescope (which doesn't disperse the light)...would these galaxies appear red in colour? because they have more long wavelength visible light? Also, can someone point me to a graph that...

Please can someone help confirm this White light is a mixture of light with different wavelengths. A percentage of the white light is light with long wavelengths and a percentage of white light is light with short wavelengths. When scientists look at the light from distant galaxies using a...