Recent content by jedjj

Thank you, I am aware that the current through an open circuit is zero, and assumed that the (V^2)/R method is there when there is current assumed to be through it, but I was unsure. So I thank you for your help.

A question on my homework is asking about power delivered to resistors. These resistors are on an open circuit. While P=IV, it is also equal to (V^2)/R, so my question is if resistors are on an open circuit is it possible for power to be delivered to them? There is a source supplying voltage...

Homework Statement Write six equations using the unknown currents I1, I2, etc. Circuit included as attachment. Homework Equations Ohm's law The Attempt at a Solution So I1, and I3 are fairly straightforward. I_{1}=\frac{X}{R_{1}} and I_{3}=\frac{X}{R_{3}} Now I get confused. Because the...

This received a lot more responses than I expected it to receive. I appreciate the input. It makes me less worried about whether to keep going or not. I am curious what else can make me look better on a resume besides internships though.

Yeah, I've never really had a difficulty getting a job. I've BSed with the best of them. I've only had mediocre jobs, but I always seemed to impress the interviewer with my personality. I guess I'm just nervous about being average, even before being in the difficult courses for my major.

Growing up I was usually ahead of most of my class, but when I got into high school my grades began to drop to about average. After starting college, I continued to have consistent "average" grades, usually B's, some A's, and occasionally C's; more C's since transferring from a community...

I haven't done a super position problem yet as this course just started a week ago. Can you explain how I would use it here? EDIT: we covered the idea quickly, but I don't understand how to use it. EDIT: nevermind. I wasn't looking hard enough through the notes. Sorry!

Homework Statement In the figure, particle 1 of charge +1.0 µC and particle 2 of charge -2.5 µC, are held at separation L = 7.0 cm on an x axis. If particle 3 of unknown charge q3 is to be located such that the net electrostatic force on it from particles 1 and 2 is zero, what must be the...

Homework Statement A block of mass m = 2.0 kg is dropped from height h = 55 cm onto a spring of spring constant k = 1960 N/m. Find the maximum distance the spring is compressed. Homework Equations \Delta K+ \Delta U_G+ \Delta U_S=0 \change in kinetic energy+change in gravitational energy+change...

That is so weird. I didnt even think about that. Can you explain why that works, but the integral of sin(x) by itself is -cos(x)? (if your answer is 'it just is' that is perfectly fine). I thought of u substitution--I was thinking that it wouldn't work.

The derivative of sin(x) is cos(x), and I do remember substitutions, but I don't know what to substitute, because I can't remember any identities for sin or cos with a power of 1.

Homework Statement I'm actually in the middle of a multivariable question, and I am stuck because I don't remember how to integrate sin(\phi)cos(\phi) . The Attempt at a Solution I have an understanding of the material, but I can't remember how to integrate this. Someone please refresh...

Thank you so much! I think I need to do some practice problems similar to this, because I am having a very hard time with this. (I'm sure I can find plenty on this board :) ).

a_x = (2.6*sin(33)+2.3) / (4+2.6) a_x = 0.563 T = 2.6*sin(33) - (2.6(.563)) T = -.0477 [physics makes me feel ignorant :( ]

Thank you so much for helping me. I feel like I am close, but I am getting a negative tension (and the magnitude of it is not correct). w_{x2}-m_2*a_x+F=m_1*a_x a_x=\frac {w_{x2}+F}{m_1+m_2} T=w_{x2}-m_2*a_x but I'm getting -.0479 why?