Recent content by rgalvan2

So if I integrate first from 0 \leq y \leq 1 then the x bounds, my f(x,y)=y? I'm a little confused over this. I don't remember going over this in calculus and this homework is supposed to be a calculus review.

Homework Statement Evaluate the following definite two-dimensional integrals over the specified domains of integration. f(x,y)=min(x,y), over the region {(x,y) : 0 \leq x \leq 2, 0 \leq y \leq 1} Homework Equations The Attempt at a Solution I'm not even sure where to start...

Homework Statement An electron of energy E = 2.10 eV is incident on a barrier of width L = 0.67 nm and height Vo = 3.10 eV What is the probability that the electron will pass through the barrier? Homework Equations I know that T=Ge^-2KL. K=2pi*sqrt((E-Uo)/1.505eVnm^2))...

Oops sorry: Calculate the x-component of the net electric field at x = 0. I figured that part out though. The next part asks to calculate the surface charge density on each side of the slab. I'm not sure how to do that. I do know that both sides need to equal the total surface charge density of...

Homework Statement Two infinite sheets with surface charge density σ1 and σ2, respectively, are oriented perpendicular to the x-axis. An infinite, conducting slab of thickness a is placed between the charged sheets as shown in the figure. The conducting plate has a net charge per unit area of...

Make an appropriate substitution to find a solution of the equation dy/dx=sin(x-y). Does this general solution contain the linear solution y(x)=x-pi/2 that is readily verified by substitution in the differential equation? Here's what I did: v=x-y y=x-v y'=1-dv/dx 1-dv/dx=sin(v)...

Block, Ramp, Friction, and Spring Due Tomorrow! Homework Statement A man pulls a block of mass m = 17 kg up an incline at a slow constant velocity for a distance of d = 3.5 m. The incline makes an angle q = 33° with the horizontal. The coefficient of kinetic friction between the block and...

ok so i get a=5.886 m/s^2. so now i have a in the positive x direction and mumg in the negative x direction. How do i implement the Work-Energy Theorem? I know the equation is Wnet=K2 - K1. And K=1/2mv^2. i know i don't have the mass so i think i have to implement mu and change in x somehow. is...

mu=ma. Fnetx is mu because its the only horizontal force right?

The only force acting in the horizontal direction is the coefficient of friction.

Hmm...I'm not sure. Can you walk me through this please?

\mumg is acting in the negative x direction. V is in the positive and mg and N are opposing each other in the y direction. Is that correct?

A box slides across a frictionless floor with an initial speed v = 3.5 m/s. It encounters a rough region where the coefficient of friction is µk = 0.6. a) What is the shortest length of rough floor which will stop the box? b) If instead the strip is only 0.41 m long, with what speed does the...

I was actually just doing that as when i saw i got a new reply. I thought i tried that before but i must have miscalculated. i got it right now thanks!

Two identical blocks are tied together with a string and placed along the same radius of a turntable that is spinning about its center. The inner block is 4 cm from the center and the outer block is 5 cm from the center. The coefficient of static friction between the turntable and the blocks is...