Recent content by AdkinsJr

Oh, I'm sorry I didn't realize something was missing. The force is taken away at point B.

This is given.

Homework Statement 2. Homework Equations Conservation Mechanical Energy The Attempt at a Solution I need to find how close to the wall the block will come. Since there's no friction, I presumed there'd be enough energy, and only enough energy, to go the same distance d to the left of A...

Right, and I still find that they are dimmer. If there's less current after removing the bulb A, then the current to the bulbs next to the battery are going to be less (since they should have the same current as the overall current going over them) and therefore they should be dimmer? I'm told...

Homework Statement Homework Equations Ohm's Law, Equations for parallel and series combinations of resistors[/B] The Attempt at a Solution Working this problem I obtain a solution that doesn't make sense, which is that the bulbs are dimmer. If I assign 10 ohms to each bulb, I believe...

You got to be kidding me. I can't believe I didn't notice that and wasted this much time. I guess I'm kind of relieved that it was my vigilance and not my understanding of physics that failed though. I thought I was going crazy for moment.

Homework Statement There is an example problem in a textbook I'm looking at where they solve a simple incline-mass problem (friction included) using work-energy. We are given the mass 40kg, the length of the slide is 8 m, the incline is 30 degrees, the coefficient of kinetic friction is .35...

Homework Statement Homework Equations \frac{1}{p}+\frac{1}{q}=\frac{1}{f} The Attempt at a Solution I already had this typed in word so here is a screen shot: I don't understand why the negative is omitted in the "correct answer" "B." In solving this problem I wanted to proceed in...

Here's an example of such a problem. A conducting rod carrying a total charge of Q is bent into a semicircle of radius R centered at the origin. The charge density along the rod is given by λ = λ0 sin(θ), where θ is measured clockwise from the +x axis. What is the magnitude of the electric...

Homework Statement This is more of a general question, but a simple example would be find the force on a test charge q at the center of a ring of charge with a total charge Q and a charge distribution given as λ(θ) =ksin(θ) where θ is measured clockwise with respect to the positive x-axis. The...

Homework Statement Two balls with the same mass are dropped from the same height. After colliding with the ground, one of the balls "A" bounces higher than the other ball "B." Neglect air resistance. Is mechanical energy conserved ? Are they subjected to the same impulse after colliding with...

There's a mistake in the feed back loop in my drawing, the ground at the end of R2 should not be there, that should be Vout.

Homework Statement Write output voltage in terms of input voltages for the circuit drawn. I drew the circuit and then feed back loop. Homework Equations Ohms Law V=IR Basic Properties of Op Amps (ideal), voltages are assumed equal at both inputs... The Attempt at a Solution The...

I am typing up a lab report for an introductory chemistry course. Basically we determined the entropy and enthalpy for the dissolution of potassium nitrate in water. The exp. values I found are close to each other but I'm supposed to compare to literature sources and I'm finding frustratingly...

I cannot find info on how to read capacitance on all these ceramic capacitors in my lab. I probably have 50 different capacitors but cannot find instructions on how to read most of them, any instructions I find on how to give the multiplier or whatever seems to apply to only a handful. and its'...