Recent content by bobquantum

Your equation is actually incorrect. by Snell's formula, sin a = 1.56Apply the duble angle formula to sin (2a) to get 2sin(a)cos(a). since a does not equal an integral multiple of pi, you can divide out sin(a). From there, you can find that cos(a) = 0.321 Use the inverse of cosine function to...

The problem is, I am not allowed to introduce more variables (i.e. no radius of curvature or angles). I must solve using the variables given. I wonder if there is a simpler way to represent x and y in a function. This is a POPTOR question by the way, but the deadline is past, so you guys don't...

Homework Statement A point source of light P that is located in a medium 1 with refractive index n1, and its image O in the medium 2 with refractive index n2 > n1. The boundary between the two media crosses the plane of the drawing along the curve B. Taking the position of the image as an...

Hey. My university professir told me this one and I can't seem to get: A farmer was going to town with a fox, a goose and a sack of corn. When he came to a stream, he had to cross in a tiny boat, and could only take across one thing at a time. However, if he left the fox alone with the goose...

Try this one: What English word is nine letters long, and can remain an English word at each step as you remove one letter at a time, right down to a single letter. List the letter you remove each time and the words that result at each step.

What has a mouth but cannot talk, what can run but never walks? what has a head but cannot weep. what has a bed but cannot sleep?

You guys are weird.

Chi is probably a force that can be defined by the unified field theory. That is, if it is a force. Yes, I am a skeptic.

Well, there are a hell of a lot of stars out there, so it is almost for sure that there is intelligent life out there. The problem is, the chance of them visiting a simple star system such as us out of a quadrillion other star systems is pretty mch close to nil.

Snakes used to have limbs, but then they got less important or something and then the theory of evolutin killed them off (perhaps no natural predators). NOw that snakes are getting destroyed by humns, maybe apossible re-awakening of genetic genomes to grow limbs?

First, we must understand what the Heisenberg Uncertainity Principal dictates The postion and momentum of a particle cannot both be know exactly because particles can both act as waves or point particles. Therefore, the Heisenberg Uncertainity Principal means that there is actually no single...

It is not possible to have a photon with spin zero because if it did, the the photon, at a stand still, would have no mass and therefore is basically non-existent.

By improvements, I mean what evolution could change the lymphatic system to better adapt to modern day diseases etc. etc.

Homework Statement My teacher wants us to do a report on the lymphatic system but I'm stuck on the part where we have to predict and give insights on improvements of the lymphatic system in the future and original ideas. Help? Homework Equations The Attempt at a Solution

My daughter came home from school on Friday and told me that her science teacher mismarked her test. The question was: EXplain the reason thzt birds can fly. she told em that the reason they can flywas Isaac's Third Law. I believed, aqs we weretaught by our elementary school teachers that it waz...