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  2. Watt-hour per kilogram - Wikipedia

    en.wikipedia.org/wiki/Watt-hour_per_kilogram

    The watt, kilogram, joule, and the second are part of the International System of Units (SI). The hour is not, though it is accepted for use with the SI.Since a watt equals one joule per second and because one hour equals 3600 seconds, one watt-hour per kilogram can be expressed in SI units as 3600 joules per kilogram.

  3. Watt - Wikipedia

    en.wikipedia.org/wiki/Watt

    The watt (symbol: W) is the unit of power or radiant flux in the International System of Units (SI), equal to 1 joule per second or 1 kg⋅m 2 ⋅s −3. [ 1 ] [ 2 ] [ 3 ] It is used to quantify the rate of energy transfer .

  4. Kibble balance - Wikipedia

    en.wikipedia.org/wiki/Kibble_balance

    [1] [2] It was originally known as a watt balance because the weight of the test mass is proportional to the product of current and voltage, which is measured in watts . In June 2016, two months after the death of its inventor, Bryan Kibble , metrologists of the Consultative Committee for Units of the International Committee for Weights and ...

  5. Power-to-weight ratio - Wikipedia

    en.wikipedia.org/wiki/Power-to-weight_ratio

    A typical turbocharged V8 diesel engine might have an engine power of 250 kW (340 hp) and a mass of 380 kg (840 lb), [1] giving it a power-to-weight ratio of 0.65 kW/kg (0.40 hp/lb). Examples of high power-to-weight ratios can often be found in turbines.

  6. Units of energy - Wikipedia

    en.wikipedia.org/wiki/Units_of_energy

    The British imperial units and U.S. customary units for both energy and work include the foot-pound force (1.3558 J), the British thermal unit (BTU) which has various values in the region of 1055 J, the horsepower-hour (2.6845 MJ), and the gasoline gallon equivalent (about 120 MJ). Log-base-10 of the ratios between various measures of energy

  7. Follow These Syrian Refugees As They Risk Everything For A ...

    testkitchen.huffingtonpost.com/1000-miles/?ncid=...

    Seven countries, an ocean and over a thousand miles stand between them and their dreams for a future

  8. Mortgage and refinance rates for Dec. 2, 2024: Average rates ...

    www.aol.com/finance/mortgage-and-refinance-rates...

    A mortgage point could cost 1% of your mortgage amount, which means about $5,000 on a $500,000 home loan, with each point lowering your interest rate by about 0.25%, depending on your lender and loan.

  9. Intensity (physics) - Wikipedia

    en.wikipedia.org/wiki/Intensity_(physics)

    [a] In the SI system, it has units watts per square metre (W/m 2), or kg⋅s −3 in base units. Intensity is used most frequently with waves such as acoustic waves ( sound ), matter waves such as electrons in electron microscopes , and electromagnetic waves such as light or radio waves , in which case the average power transfer over one period ...