Recent content by pinkfishegg

Hi everyone. This isn't for a class but more for lab work. I'm confused on how to read optics diagrams to understand this Glan-Taylor prism, specifically the up and down arrow vs the dot. Does the arrow pointing up and down mean that it is vertically polarized. Is the dot horizontally polarized...

ok i just looked at this: https://en.wikipedia.org/wiki/Spherical_coordinate_system. sometimes its opposite in math so that's why i mixed it up.

So Φ is from top to bottom and θ from left to right correct? why are those the bounds. It seems like it could go either way and you'd still get the entire sphere.

ohhh so i got the bounds for φ and θ mixed up..

Hey I was just practicing Gauss's law outside a sphere of radius R with total charge q enclosed. So I know they easiest way to do this is: ∫E⋅da=Q/ε E*4π*r^2=q/ε E=q/(4*πε) in the r-hat direction But I am confusing about setting up the integral to get the same result I tried ∫ 0 to pi ∫0 to...

Homework Statement Consider an Ocean Current flowing at 2.5 m/s. a) How much energy is contained in a cubical block of water 1m on the side. (The density of the water is about 1030kg/m^3.) b) If the flow is perpendicular to one of the cube faced, what is the rate at which current flow carries...

Ohhh that makes so much sense thanks

Oh a radius of a bolt is the round thing before the threat, is the force applied there?

So are we looking for a ratio of the torques to find the Force?

here's a pic drawn in paint

Homework Statement In an Effort to tighten a bolt, a force F is applied to the end of a wrench that has a length L perpendicular to the wrench. If the bolt itself has a radius of b, how much force is applied to the bolt Homework Equations ∑τ=RFsinθ ΣF=ma ∑T=Iα The Attempt at a Solution I...

I'm confused on how to set up the integral because I don't know where to set P, and therefore how to know what R should be. In the example where they derived the B-Field of the wire, the Set P on the Y axis. I'm not sure how to figure that out.

Homework Statement Use the Biot-Savart Law to find the magnetic field strength at the center of the semicircle in fig 35.53 Homework Equations Bcurrent=(μ/4π)*(IΔsXr^)/r2 Bwire=μI/2πd The Attempt at a Solution The solution from the back of the book is B=μI/4πd It looks like they just added...

1)3 2)3,6,1 3) 20%, 40%

So the the energy units can be distrubuted 3 macrostates=3 combination of different units 3-0-0 0-3-0 0-0-3 2-1-0 2-0-1 1-2-0 1-0-2 0-1-2 0-2-1 1-1-1 3...