Simple dimensional analysis question?

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Discussion Overview

The discussion revolves around a dimensional analysis question regarding the relationship between force and another physical quantity that results in the dimensions of power. Participants explore the concept of power and its units, as well as how to express these relationships in a scientific manner.

Discussion Character

  • Exploratory, Conceptual clarification, Homework-related

Main Points Raised

  • One participant asks what combination of force and another physical quantity has the dimensions of power.
  • Another participant suggests that speed is the relevant quantity that, when combined with force, yields power.
  • There is a request for clarification on how to express this relationship scientifically.
  • Participants discuss the units of power, with mentions of various units such as horse, erg, watt, kilowatt, and newton-meter per second.
  • One participant emphasizes that power has a specific meaning derived from basic units of mass (M), length (L), and time (T).

Areas of Agreement / Disagreement

Participants generally agree that speed combined with force relates to power, but there is no consensus on how to formally express this relationship scientifically. The discussion on units of power also reflects varying perspectives on what constitutes valid units.

Contextual Notes

Some participants express uncertainty about the scientific expression of the relationship between force and speed in the context of power. There are also unresolved aspects regarding the definitions and derivations of units of power.

makeitdone
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؟؟؟simple dimensional analysis question?

what combination of force and one other physical quantity has the dimensions of power??
 
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Hi makeitdone,

That's easy: speed.

Cheers,
Kurt
 


Kurt Peek said:
Hi makeitdone,

That's easy: speed.

Cheers,
Kurt

How pls??
 


What are the units of power?
 


yes that's it power = force.speed

but I was wondering how to write it in a scientific way it's my 1st lecture in this field...
 


yes that's it power = force.speed

but I was wondering how to right it in a scientific way it's my 1st lecture in this field...
 


Power has a specific meaning and it is derived from the basic units M L and T. Do you know what the units of power are?
 


SteamKing said:
Power has a specific meaning and it is derived from the basic units M L and T. Do you know what the units of power are?

I know horse ,erg ,watt ,k.watt and n*m/s
 

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