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What really is a Pascal and a Joule? - Physics Forums The same with Joule's Don't think of it as Kg*m^2 s^2, think about it as a force being applied over a distance Joule is energy, and an external force does work on an object by an amount of where F is the force and ds is a small chunk of the path that it travels (a line is 1d)
Joules per Coulomb and the Volt - Physics Forums Then 1 volt means 1 joule per coulomb; 2 volts mean 2 joules per coulomb, and 5 volts mean 5 joules per coulomb But what is meant by 2 or 5 volts? If one coulomb contains a set amount of electrons, how can one coulomb have more energy or potential to do work than another coulomb? What is different?
Do Joule Thiefs Work With Supercapacitors - Physics Forums I have a supercapcitor to power some of my small projects The only problem is that the voltage drops gradually, unlike a lithium ion battery, in which the voltage is mostly stable throughout My boost converter that I am using to boost the voltage up to 5 volts, stops working with an input
What is a Joule Second? - Explained Easily! - Physics Forums A joule in mechanical work is 1 N of force applied on an object to move it a distance of 1 m So a joule persecond is doing the above action in one second Btw, a "joule per second" and a "joule second" are not the same thing Jule per second is dividing by seconds, joule second would be multiplying by seconds
Entropy Change from Joule Expansion - Physics Forums Joule expansion is not reversible and there is a nonzero entropy change Since the energy E of an ideal gas is given by E = 3 2 NkT, and since no heat or work is performed on the system, the temperature must be the same
Adiabatic cooling vs. Joule-Thomson effect - Physics Forums The observed cooling occurs due to Joule-Thomson effect which predicts cooling of air by isenthalpic expansion at room temperature (because air is not ideal gas and so temperature does not directly correspond to internal energy)
What is the Definition of 1 Joule and How Does it Relate to Lifting . . . One joule is the amount of energy required to exert a force of 1N through a distance of 1 meter It doesn't matter how fast you do this The RATE at which you use this energy is power A watt is a measure of power, which is a joule sec Energy is the capacity to do work, no matter what form it is in, whether it is electrical energy, mechanical energy, chemical energy, heat, etc 5 joules of
How to convert cm^-1 into erg or joules - Physics Forums I'm not sure if this is the right place for this, but I can't seem to find how to convert cm^-1 into erg or joules It's a pretty dumb question, but I can't find the answer anywhere Thanks a lot in advance!