WebmJ/cm2 是单位面积上的能量的单位,40 mJ/cm^2就是每平方厘米上有40mJ的辐射能。. W是功率的单位,1W=1J/s。. 所以30W的紫外灯如果辐照均匀的话,照在750cm^2大的区域就是每秒40mJ/cm^2. yaoshuguan. 引用回帖: 2楼: Originally posted by bill_shark at 2011-11-29 18:14:38: mJ/cm2 是单位面积 ... Web» More Megajoule, Energy and work Unit Conversions. Unit Conversions:: • Acceleration • Area • Charge • Conc. Percentage
Convert Microjoule to Joule - Unit Converter
WebThe prefix micro is derived from the Greek mikrós meaning small and is symbolized as μ. Micro denotes a factor of one millionth (10 -6) which means that there are 1,000,000 microwatts in a watt. Select a Conversion Select one of the microwatt conversions below: Microwatt to Decawatt (μW to daW) Microwatt to Gigawatt (μW to GW) Web3 jan. 2024 · MJ is an abbreviation for M ega J oule, which is a unit of energy equivalent to one million joules. A property’s gas usage is measured in megajoules and is recorded using a gas meter. This information is then passed on to your natural gas retailer for billing purposes. Your gas usage information (in MJs) will be detailed on your bill, helping ... cioffredi\\u0027s driving school
Convert J to mJ - Conversion of Measurement Units
WebnJ to MJ Conversion. The abbreviation for nJ and MJ is nanojoule and megajoule respectively. 1 nJ is 1E+15 times smaller than a MJ. To measure, units of measurement are needed and converting such units is an important task as well. unitsconverters.com is an online conversion tool to convert all types of measurement units including nJ to MJ … Web16 jun. 2024 · Abstract and Figures. We demonstrate numerically and experimentally a gain-managed nonlinear amplifier with a large mode area fiber. The amplifier delivers 1.2 µJ and sub-40 fs pulses with the ... mJ: millijoule: 10 3 J kJ: kilojoule: 10 −6 J µJ: microjoule: 10 6 J MJ: megajoule: 10 −9 J nJ: nanojoule: 10 9 J GJ: gigajoule: 10 −12 J pJ: picojoule: 10 12 J TJ: terajoule: 10 −15 J fJ femtojoule 10 15 J PJ petajoule 10 −18 J aJ attojoule 10 18 J EJ exajoule 10 −21 J zJ zeptojoule 10 21 J ZJ zettajoule 10 −24 J yJ yoctojoule ... Meer weergeven The joule is the unit of energy in the International System of Units (SI). It is equal to the amount of work done when a force of 1 newton displaces a mass through a distance of 1 metre in the direction of the force … Meer weergeven One joule represents (approximately): • The amount of electricity required to run a 1 W device for 1 s. • The energy required to accelerate a 1 Meer weergeven Zeptojoule 160 zeptojoule is about one electronvolt. The minimal energy needed to change a bit at around room temperature … Meer weergeven In mechanics, the concept of force (in some direction) has a close analogue in the concept of torque (about some angle): A result of this similarity is that the SI unit for torque is the newton-metre, which works out algebraically to have the same dimensions as … Meer weergeven In terms of SI base units and in terms of SI derived units with special names, the joule is defined as One joule … Meer weergeven The cgs system had been declared official in 1881, at the first International Electrical Congress. The erg was adopted as its unit of energy in 1882. Wilhelm Siemens, in his inauguration speech as chairman of the British Association for the Advancement of Science (23 … Meer weergeven 1 joule is equal to (approximately unless otherwise stated): • 10 erg (exactly) • 6.24150974×10 eV Meer weergeven cioff suisse