Recent content by clearwater304

I assume the equation from this thread would be the closest thing I could get to a correct formula. 2. angular velocity w= (rpm*2*pi)/60 angular accel a= w/time inertia I=mr^2 Torque T=Ia https://www.physicsforums.com/showthread.php?t=412001 I'm not really sure how they put in the...

I get about .43 hp, but I'm not sure how accurate that is. Shouldn't cross sectional area come in somewhere?

Grinding cups abrade the surface, they don't cut it. What are the variables in this equation: F = Fn * .75 Can I use the work done due to friction to calculate energy loss? Work done=Friction Force X Distance Friction Force= Coefficient of Friction X Normal Force Distance= Circumfrence X...

What I mean to say is: Is there a way I could calculate the energy loss due to friction yet still keep the motor running at a minimum RPM. For instance, if I put 5 pounds of force on the grinder, and the surface has a friction of .75, what would the energy loss be, and how does that translate...

Is their a relationship between slip friction and torque?

I'm working as an intern trying to automate this grinder system. I would like to find the minimum torque needed for the grinder motor. The grinder motors we currently use have: 1.25 HP RPM between 8,000-11,000 13 amps 120 volt AC The grinded surface has a: Coefficient of Friction...

Good point Demystifier, I completely forgot about the real case scenerios where the external frequency had to match the natural frequency to increase the energy. I used to be a physics student but I switched my junior year. In modern physics, we covered energy levels of particles and quantum...

It didn't have anything to do with cosmology, it was just a Intermediate Dynamics class. I assumed the equation was related to a simple harmonic oscillator, which I assumed was the basis for determining the energy of a particle. I realized earlier that the particles natural frequency would...

First off let me state that I'm just a mechanical engineering student, so I'm not too savvy when it comes to quantum physics, but my teacher was talking about this equation in class and it reminded me about infinite wavelengths near the egde of the universe and the event horizon on a black hole...

If you think education is expensive, try ignorance.

If you are planning to be an engineer make sure you check your schools degree plan before taking classes at community college. I took all my basics in community college, and by the time I went to a university, I realized you have to take engineering classes starting freshman year in order to...

I should have mentioned, a and b are integers, and there is only one solution for a and b to get c. I may be able to find another equation that is equal to c. Would I need this in order to solve the equation?

C is a known number, therefore I would only need to solve for a or b. Whats the best way to solve this, a few things come to mind, using a matrix or differential equations, but I'm not sure how they are applicable to this situation.

There are two cases I could think of: Case 1: The electron is constantly in a state of unrest due to the hiesenburg uncertainty principle, and the ZPE of that electron is caused from the state of its own unrest. Case 2: The electron is constantly in a state of unrest becuase it is...

Here's how I came to the conlusion, I stand to be corrected, but it still seems logical to me. "One of the most interesting aspects of vacuum energy (with or without mirrors) is that, calculated in quantum field theory, it is infinite! To some, this finding implies that the vacuum of space...