Recent content by Lannie

This is probably a stupid question, but how do you covert a potential difference measured in volts to electron volts? Do you just multiply the volts by e= 1.60e-19 C?

Hi, I am having some trouble with the following problem: Calculate the electric force on a -3.29microC charge placed on the y-axis at y=0.493m. First I calculated the electric field at y=0.493m using the equation E= (1/4piEo)*(q/r^2) and found the electric field at that point to be...

I don't actually have a specific homework question, but I'm wondering if anyone could explain to me how you solve a stopping distance problem. I've encountered these questions in very different ways, once with very little information given, and one with a considerable amount of calculating to...

actually yeah, WOW, I just looked at my work and was hoping to scramble here and edit this... totally missed a step there. I'm sorry! I'm a bonehead. thanks though :)

I'm not sure what I've done wrong on this problem, so anyone who sees my mistake, please let me know! Two blocks are moving on a frictionless surface. The first block's mass is 1.17 kg and its initial velocity is 5.50 m/s. The second block's mass is 2.73 kg and its initial velocity is 2.15...

ok that definitely makes sense. the example in the textbook had a different co-ordinate system so I guess that was the difference. thank you both for the help!

that was the formula given in the textbook in the section on stopping distances. based on X1= - Vsquared/2a (all in the x direction) and 2a= 2g x (sinθ + μkcosθ) i'm ignorant-- why doesn't that work?

I'm trying to work out a problem involving the stopping distance of a skiier, and I thought it was a straightforward problem but I've gone wrong somewhere. Determine the stopping distance for a skier moving down a slope with friction with an initial speed of 22.2 m/s. Assume μk=0.173 and...

that makes sense :) thanks for the help

This problem seemed very straightforward but I've somehow missed something... Three blocks (M1, M2, M3) are in contact with each other on a frictionless, horizontal surface. A horizontal force is applied to M1. If M1= 1.67kg, M2= 2.67kg, M3= 3.78kg, and F= 16.1 N: a) what is the...