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The joule (/ dʒ uː l / JOOL, or / dʒ aʊ l / JOWL; symbol: J) is the unit of energy in the International System of Units (SI). [1] It is equal to the amount of work done when a force of one newton displaces a mass through a distance of one metre in the direction of that force.
Παράγωγοι μονάδες. Από τη μονάδα τζάουλ προκύπτουν επίσης οι ακόλουθες παράγωγοι μονάδες: τζάουλ ανά κέλβιν και τζάουλ ανά χιλιόγραμμο και κέλβιν, καθώς και το κιλοτζάουλ (kJ) που ισούται με 1000 τζάουλ. Το Τζάουλ ανά κέλβιν (J/K) είναι μονάδα θερμοχωρητικότητας και εντροπίας στο ΔΣ (SI) μονάδων.
24 Οκτ 2024 · First, we'll calculate the power P using the formula P = I 2 x R, where I is the current in amperes (amps) and R is the resistance in ohms. These units give us the power in watts, so from there, we' can use the formula in the previous step to calculate the energy in joules.
7 Αυγ 2024 · Joule Formula The Basic Formula for Work and Energy. The fundamental formula to calculate work or energy in Joules is given by: E=F×d. Where: E is the energy in Joules (J), F is the force applied in newtons (N), d is the distance over which the force is applied in meters (m). Additional Formulas Involving Joules
Named in honour of the English physicist James Prescott Joule, it equals 10 7 ergs, or approximately 0.7377 foot-pounds. In electrical terms, the joule equals one watt-second—i.e., the energy released in one second by a current of one ampere through a resistance of one ohm.
7 Μαρ 2019 · The joule (symbol: J) is the basic SI unit of energy. A joule is equal to the kinetic energy of a kilogram mass moving at the speed of one meter per second (one joule is a kg⋅m 2 ⋅s −2).
Español. A joule is the SI base unit for energy. It is equal to 1kg⋅m2 s2 1 k g ⋅ m 2 s 2. [1] . In physical terms, lifting an apple one meter takes 1 joule of energy. This should not be confused with a watt which is a unit of power and a rate of how fast energy is used.
