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- What really is a Pascal and a Joule? - Physics Forums
Hi forum, First time poster I'm in thermo this year and it's the first time working with pascals and joules My teacher and most post just jump right into the equations, 1Pa = 1N m^2 and 1J = 1N * M But what really is a pascal? I get what a N is, force to move 1kg*m s^2 If I convert N, I get
- What is a Joule Second? - Explained Easily! - Physics Forums
I can easily picture joules per second (I just see light of varying intensities passing a point at varying rates) I don't know what a joule second is I know that Plancks constant is just to use the frequency of the photon to find out its energy but what in the name of God is a joule second?
- 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!
- Torque Joules: Fact or Fiction? - Physics Forums
Wikipedia says that the unit of magnetic dipole moments is calculated by Joule B that means that the torque is measured by joules I really doubt that, it seems non sense
- 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?
- What is the Definition of 1 Joule and How Does it Relate to Lifting . . .
One Joule is defined as the energy required to exert a force of one Newton over a distance of one meter, and it is not dependent on the speed of the lift Lifting a 1 kg object 10 cm requires approximately 0 98 Joules, illustrating that energy is imparted through the force of gravity acting on the object's weight While muscles expend energy to lift objects, this energy is not solely
- Adiabatic cooling vs. Joule-Thomson effect • Physics Forums
When deflating a tire filled with helium, two theories emerge regarding temperature changes: one suggests it will cool due to adiabatic expansion, while the other posits it will warm up due to the Joule-Thomson effect The first theory argues that as helium escapes, it performs work against atmospheric pressure, leading to cooling Conversely, the second theory claims that because helium has a
- Converting Coulombs to Joules Without Voltage - Physics Forums
Converting coulombs to joules requires knowledge of voltage, as they are fundamentally different quantities The relationship between them involves current and power, where joules are calculated using the formula Joule = Volt * Coulomb The discussion highlights the confusion surrounding the original question, emphasizing that without voltage, the conversion is not feasible Participants also
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