Recent content by jocose

Thanks Russ, This is helpful. I've mixed several things up. I apologize for being inarticulate but as you can tell I was very confused.

If there is a massive object floating in space and I tap the side of it with a relatively small force it will move said object a very small amount. If I tried the same thing on Earth the object would not move because of gravity. I'm inferring (perhaps erroneously) that this means the object is...

I've marked the center of gravity on the diagram. I've assumed its in the center (half the width and half the height). I'm still unclear how to utilize it in this instance.

Apologies but I'm unfamiliar. Is W weight? If so no that does not look correct. I suppose I'm not understanding what you're getting at.

1. The problem statement, all variables, and given/known data If I apply a force perpendicular to the side of a 2D block at 1/2 its height with a fixed bottom corner opposite the applied force how much force will be required to tip the block?: Block Mass = M Block Width = W Block Height = H...

After researching white blance I think this might have to do with color tempature. The color of the light IS changing the more intense I make it. My light source most likely mimics a http://en.wikipedia.org/wiki/Black_body" . So you actually get a more pure white light the more intense you...

Thanks for consistent replies Andy. I'm probably just missing something here, but I'm still a bit confused. I understand that the laser is monochromatic and that other light sources are not, but what confuses me is the order in which things occur. In my head, I'm imagining being blinded by...

Yeah I didnt think so, but it might make sense about the saturation limit. I guess the real issue I have is that if someone shines a red laser into your eye you have the perception of being blinded by red light. However, if I shine a white light at a red wall and increase the intensity enough...

I see, it makes a lot of sense this might be an issue with color perception. However, this doesn't make sense though, because lasers operate at VERY high intensities but appear to be only one color... Is it the case then that my eyes get over saturated by the red light, stop seeing it...

That's good point. So does the human eye precieve all light of a high intensity, regardless of wavelength, as white?

Thanks for the replies! Sorry for not being more specific. Yes, I am assuming it is red because of paint, and the light source would be, let's say, a search light with a intensity control on it so I could turn up and down the brightness. So what you are saying is that most surfaces don't...

I'm not a physicist. So mathematics probably won't help me understand this issue. However, this has been troubling me for the past week or so and I would really like to get to the bottom of it. If someone could provide a plain English explanation of what's going on I would greatly appreciate...