Convert horsepower (550 ft*lbf/s) to attojoule/second

Please provide values below to convert horsepower (550 ft*lbf/s) [hp] to attojoule/second [aJ/s], or Convert attojoule/second to horsepower (550 ft*lbf/s).

1 hp = 7.4570e+20 aJ/s. To convert horsepower (550 ft*lbf/s) to attojoule/second, multiply the value by 7.4570e+20; to go the other way, divide by it (1 aJ/s = 1.3410e-21 hp). Both units measure power and appear in everyday as well as technical calculations, so switching between them quickly is often useful.

Quick Reference

  • 1 hp = 7.4570e+20 aJ/s
  • 1 aJ/s = 1.3410e-21 hp
  • 10 hp = 7.4570e+21 aJ/s
  • 100 hp = 7.4570e+22 aJ/s

How to Convert Horsepower (550 Ft*lbf/s) to Attojoule/second

1 hp = 7.457e+20 aJ/s

Example: convert 15 hp to aJ/s:
15 hp = 15 × 7.457e+20 aJ/s = 1.11855e+22 aJ/s

Horsepower (550 Ft*lbf/s) to Attojoule/second Conversion Table

horsepower (550 ft*lbf/s) attojoule/second
1 hp 7.4570e+20 aJ/s
2 hp 1.4914e+21 aJ/s
3 hp 2.2371e+21 aJ/s
5 hp 3.7285e+21 aJ/s
10 hp 7.4570e+21 aJ/s
20 hp 1.4914e+22 aJ/s
50 hp 3.7285e+22 aJ/s
100 hp 7.4570e+22 aJ/s
500 hp 3.7285e+23 aJ/s
1000 hp 7.4570e+23 aJ/s

Horsepower (550 Ft*lbf/s)

Horsepower (hp) is a unit of power measurement, defined as 550 foot-pounds of work per second (ft·lbf/s).

History/Origin

The horsepower was developed by James Watt in the late 18th century to compare the power of steam engines with draft horses, and it became a standard unit for measuring engine power.

Current Use

Horsepower is still widely used today to rate the power of engines and motors in automotive, aviation, and industrial applications.


Attojoule/second

An attojoule per second (aJ/s) is a unit of power representing the rate of energy transfer or conversion of one attojoule (10^-18 joules) per second.

History/Origin

The attojoule is a relatively recent SI prefix introduced to measure extremely small quantities of energy, and its use in power units like aJ/s has emerged with advancements in nanotechnology and quantum physics, though it remains a specialized unit with limited historical usage.

Current Use

The aJ/s is used in scientific research involving extremely low power measurements, such as in quantum physics, nanotechnology, and energy transfer studies at the atomic or molecular scale.

Frequently Asked Questions

What is 1 horsepower (550 ft*lbf/s) in attojoule/second?

1 horsepower (550 ft*lbf/s) (hp) = 7.4570e+20 attojoule/second (aJ/s).

How do you convert horsepower (550 ft*lbf/s) to attojoule/second?

Multiply the horsepower (550 ft*lbf/s) value by 7.4570e+20. For example, 25 hp × 7.4570e+20 = 1.8642e+22 aJ/s.

What is 10 horsepower (550 ft*lbf/s) in attojoule/second?

10 hp = 7.4570e+21 aJ/s.

Which unit is larger, the horsepower (550 ft*lbf/s) or the attojoule/second?

The horsepower (550 ft*lbf/s) is the larger unit: 1 hp = 7.4570e+20 aJ/s.

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