What is a Joule Second? - Explained Easily! - Physics Forums
Jul 9, 2010 · A Joule Second, also known as a Joule-Second or a Joule Second (J·s), is a unit of energy used in physics. It is a combination of the units Joule (J) for energy and second (s) for time. It is defined as the amount of energy transferred or expended in one second by a current of one ampere through a resistance of one ohm. 2.
What really is a Pascal and a Joule? - Physics Forums
Jan 21, 2015 · Joule Pascal. In summary, a pascal is a unit of pressure and can be thought of as force per unit area. A joule is a unit of energy or work and can be thought of as a force applied over a distance. These are important concepts in thermo and have been previously covered in introductory physics courses. Jan 21, 2015.
How to convert cm^-1 into erg or joules - Physics Forums
Feb 5, 2010 · Yes, you can use a calculator to convert cm^-1 to erg or joules. Simply enter the number of cm^-1 and multiply it by the appropriate conversion factor (1.986 x 10^-23 for erg, or 1.986 x 10^-23 for joules). 4.
Joule Mobile Mass Transporter Project - Physics Forums
Dec 28, 2008 · The Joule Mobile Mass Transporter has a wide range of potential applications, including transporting materials for construction projects, moving goods in logistics and shipping industries, and even transporting large vehicles or machinery. 4. What are the advantages of using the Joule Mobile Mass Transporter over traditional transportation methods?
Is it possible to have negative joules? - Physics Forums
Nov 21, 2004 · Yes, negative joules can be measured just like positive joules. In thermodynamics, the sign convention is used to indicate whether the work is being done by the system (negative joules) or on the system (positive joules). The magnitude of the joules can still be measured and calculated as usual. 5. What are some examples of negative joules in ...
Converting Coulombs to Joules Without Voltage - Physics Forums
Aug 1, 2015 · To convert Coulombs to Joules without voltage, you will need to use the formula Q = CV, where Q is the charge in Coulombs and C is the capacitance in Farads. If you don't know the voltage, you can rearrange the formula to solve for Q and then use the formula for calculating energy, E = 1/2QV, to find the energy in Joules. 2.
What the heck is measured in m2 / s2? - Physics Forums
Oct 21, 2011 · Using bernoulli's equations you can find out the loss of energy due to friction in joule/kg, which is the same as m2/s2. A joule is the same as a Newton times meter, while a Newton is the force required to accelerate a mass of 1 kg by 1 meter per second squared. so if you write it out it becomes:
Entropy Change from Joule Expansion - Physics Forums
Aug 27, 2012 · Change Entropy Expansion Joule. In summary, a thermally isolated cylinder with a piston is used to compress an ideal gas of N particles from its initial volume V to half its original volume V/2 in a quasistatic process. This results in a zero entropy change. In step two, the gas undergoes a Joule expansion back to its original volume V ...
Joule Heating and the Thomson effect in Drude theory - Physics …
Mar 31, 2018 · Joule Heating is the process by which electric current is converted into heat energy as it flows through a material. In Drude theory, this phenomenon is explained by the collisions between electrons and the crystal lattice in a conductor, which causes energy to be transferred and dissipated as heat.
Do Joule Thief's Work With Supercapacitors - Physics Forums
Feb 2, 2016 · The Joule Thief is a simple electronic circuit that is designed to efficiently extract energy from a power source, such as a battery or supercapacitor, that is below its normal operating voltage. It works by utilizing the energy stored in the magnetic field of a coil to boost the voltage and provide a steady output.