Convert revolution/second [r/s] to femtometer/square Online | Free Acceleration Converter

Revolutions per Second (r/s)

Revolutions per second (r/s) is a unit of angular velocity that measures how many complete rotations or revolutions an object makes in one second. One revolution corresponds to a full 360-degree turn or $2\pi$ radians. This unit is commonly used to describe very fast rotational speeds in machinery, motors, turbines, and other high-speed rotating systems. For example, a motor spinning at 50 r/s completes 50 full rotations every second. Revolutions per second provide a clear and precise measure of rapid rotational motion, useful in physics, engineering, and technology fields where high-speed rotation is involved. It also facilitates easy conversion to other angular velocity units like radians per second or revolutions per minute.

Femtometer and Square Femtometer – A Short Note

A femtometer (symbol: fm) is a unit of length in the metric system, equal to:

1 femtometer = 10⁻¹⁵ meters

It is also known as a fermi (symbol: f), named after physicist Enrico Fermi. The femtometer is commonly used in nuclear physics to measure the size of atomic nuclei and subatomic particles. For example, a typical atomic nucleus is about 1–10 femtometers in diameter.

A square femtometer (symbol: fm²) is a unit of area that represents a square with sides one femtometer in length:

1 fm² = (10⁻¹⁵ m) × (10⁻¹⁵ m) = 10⁻³⁰ m²

This unit is used to describe extremely small surface areas at the nuclear or particle scale, though less commonly than the length unit.

In summary:

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  Femtometer (fm) measures very small lengths (nuclear scale)

  
  
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  Square femtometer (fm²) measures extremely tiny areas

  
  
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  Used mainly in nuclear and particle physics.