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  1. List of orders of magnitude for energy; Factor (joules) SI prefix Value Item 10 −34 6.626×10 −34 J: Photon energy of a photon with a frequency of 1 hertz. 10 −33 2×10 −33 J: Average kinetic energy of translational motion of a molecule at the lowest temperature reached, 100 picokelvins as of 1999: 10 −30: quecto-(qJ) 10 −28 6.6×10 ...

  2. Notes. References. Orders of magnitude (power) This page lists examples of the power in watts produced by various sources of energy. They are grouped by orders of magnitude from small to large. Below 1 W. 1 to 102 W. 103 to 108 W. The productive capacity of electrical generators operated by utility companies is often measured in MW.

    • Definition
    • Uses
    • Non-Decimal Orders of Magnitude
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    Generally, the order of magnitude of a number is the smallest power of 10 used to represent that number. To work out the order of magnitude of a number N {\\displaystyle N} , the number is first expressed in the following form: 1. N = a × 10 b {\\displaystyle N=a\\times 10^{b}} where 1 10 ≤ a < 10 {\\displaystyle {\\frac {1}{\\sqrt {10}}}\\leq a<{\\sqrt {1...

    Orders of magnitude are used to make approximate comparisons. If numbers differ by one order of magnitude, x is about ten times different in quantity than y. If values differ by two orders of magnitude, they differ by a factor of about 100. Two numbers of the same order of magnitude have roughly the same scale: the larger value is less than ten tim...

    Other orders of magnitude may be calculated using bases other than 10. The ancient Greeks ranked the nighttime brightness of celestial bodies by 6 levels in which each level was the fifth root of one hundred (about 2.512) as bright as the nearest weaker level of brightness,[citation needed] and thus the brightest level being 5 orders of magnitude b...

    The Scale of the Universe 2 Interactive tool from Planck length 10−35 meters to universe size 1027
    Powers of 10, a graphic animated illustration that starts with a view of the Milky Way at 1023 meters and ends with subatomic particles at 10−16meters.
  3. Orders of Magnitude. Patrick Healy Moran, MIT. The energy content of bombs and explosions is measured in equivalent tons of TNT. A one-kiloton explosion is equivalent to detonating one-thousand tons of TNT, also a one-megaton is equivalent of one-million tons of TNT.

    Explosive Yield (tons Of Tnt)
    Event
    Notes
    1.30E-05
    « 1 kT
    Fireworks
    1.20E-04
    « 1 kT
    M67 grenade
    1.00E-03
    « 1 kT
    Rocket-propelled grenade (RPG)
    5.00E-01
    0.0005 kT
    Tomahawk Cruise Missile
  4. Jul 16, 2020 · The order of magnitude of a physical quantity is its magnitude in powers of ten when the physical quantity is expressed in powers of ten with one digit to the left of the decimal. Orders of magnitude are generally used to make very approximate comparisons and reflect very large differences.

  5. Order of magnitude can be thought of as a ballpark estimate for the scale of a value. The diameter of an atom is on the order of 10 −9 m, while the diameter of the sun is on the order of 10 9 m. These two values are 18 orders of magnitude apart.

  6. Calculate the order of magnitude of a quantity. Compare measurable length, mass, and timescales quantitatively. Describe the relationships among models, theories, and laws. Physics is devoted to the understanding of all natural phenomena.

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