Recent content by bhsmith

I'm curious the amount the voltage would drop across a resisitor. If you know the power going into the resistor and the maximum voltage allowed is say, 50V. How would that resistor effect the voltage? I understand the voltage would decrease, and when substituting and solving equations the new...

Yes thank you very much, the car example made sense.

I'm in the process of designing the drum and bearings of a winch. After reading up about types of bearings etc. I am confused about what exactly a thrust load is, and if there would be any thrust load acting on either bearing in the case of a winch with a maximum load of 2000 lbs. Any help is...

Ok, Maybe I will look into that more. I wasn't sure if i was going down the right path with that thought. But do you have any thoughts on the moment?

proof of equilibrium equations?? Homework Statement I have a statics test tomorrow, and I have to give a proof type answer of how the equilibrium equations (sum of forces and sum of moment are zero) are derived. Homework Equations The Attempt at a Solution I'm not sure how to...

Great! That helped alot. So, if the voltage is -5v through the diamond then the current would be -5/2A. since they are in series then the two have the same current leaving the voltage v(knot) to be 15/2V? is this correct? And also if I am finding the voltage using 3i(s), and the current...

Homework Statement 1. Use Kirchoffs and Ohm's rule to find the voltage of vknot (to the far right of the picture) 2. show that your solution is consistent with the constraint that the total power supplied in the circuit equals the total power dissipated. (Picture of Circuit attached)...

Homework Statement y'' + cy' + 6y = 0 (where c is a constant) I need to find y(t) which i believe is the equation for a general solution. Homework Equations It would be r^2 + cr + 6y = 0 then I need to find the roots and create the general solution. My problem is I don't know what...

Homework Statement for the differential equation t^2y''-2ty'+2y=0 with the general solutions y=C(t) + D(t^2) where C and D are constants. given the inital solution y(0)=1 and y'(0)=1 there are no solutions that exist. Why does this not contradict the Existence and Uniqueness Theorem...

Homework Statement Is t^2, -2t and 2 continuous on an open interval? Homework Equations I have re read the theorems and explanations of how something is continuous but i still don't understand it. The Attempt at a Solution

What would happen if the Energy of the photons from the sun decreased by 10^60? I think it means that the Earth would be colder than it is because the sun is not emmiting as much heat, but I'm not sure if that is correct. Thanks for any help!

Great, the part about the Rydberg constant was really helpful! Now i have one more question... If Planck's constant were to change by 10^20, how would that effect the square of the amplitude of the wave function? That would be the probability density, so if i used to Time Independent...

I also read on another post that if Planck's constant were to increase, then the available values of E would be closer to each other.. is this correct? and if so, why?

I have actually skimmed over that book, it's really interesting and I think it explains this stuff well. It helped me to understand the uncertainty principle and the diffraction, but i still don't get the energy change. Is this right... since E=hf (f is frequency), then the Energy would...

say, 10^20 times larger.