1 joule is equivalent to 1 watt-second, 107 ergs, 0.2390 calories, or 0.738 foot-pound Joule James Prescott. 1818--89, English physicist, who evaluated the mechanical equivalent of heat and contributed to the study of heat and electricity Collins Discovery Encyclopedia, 1st edition © ...
The quantity of work equal to one joule is also equivalent to which of the following? A.watt B.watt /s C.watt?s D.watt /s^2 点击查看答案 第2题 Prices reach equilibrium at the level at which quantity demanded ___ quantity supplied. A.is...
(Units) the derived SI unit of work or energy; the work done when the point of application of a force of 1 newton is displaced through a distance of 1 metre in the direction of the force. 1 joule is equivalent to 1 watt-second, 107ergs, 0.2390 calories, or 0.738 foot-pound. Symbol...
A joule is the amount of energy required to exert one newton of force over a one-meter distance. A joule also measures the heat energy produced when one ampere of electrical current passes through one ohm's worth of resistance for one second. Other practical demonstrations of the power of ...
The watt (symbol: W) is a unit of power or radiant flux. In the International System of Units (SI), it is defined as a derived unit of (in SI base units) 1 kg⋅m2⋅s−3 or, equivalently, 1 joule per second. 14 Joule Joule is equivalent to the energy transferred when one ...
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One joule is also equal to the energy needed to move an electric charge of onecoulombthrough a potential difference of onevolt. In addition, one joule is also equal to the onewatt-second. How to Convert Joules To convert joules to another unit of energy, you need to multiply the value by...
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The capacity to do work is called energy. The energy is measured using the number of units. Calorie and Joule are two of them in which energy can be measured. These units, calorie and joule are in proportion. Therefore, any change in Calorie will change its equivalent value in Joules or...
James prescott Joule was the first experimentalist who accurately measured the mechanical energy equivalent to some amount of heat energy i.e., the mechanical equivalent of heat. This measurement determines the amount of mechanical energy expressed in joule (or erg) which is equivalent to heat energ...