anonymous
  • anonymous
I'll medal anyone I just don't understand this lol What are the three measurements you need to make in order to calculate power? What are the units of those measurements?
Physics
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schrodinger
  • schrodinger
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anonymous
  • anonymous
I'm not sure what they mean by 3 measurements. There are different ways to calculate power. \[Power = \frac{Work}{time}=Force \times Velocity \] Power is measured in Watts (W). Time could be measured in seconds, minutes, etc. Work is measured in joules (J) because it is a form of energy. Force is either measured in Newtons (N) or pound (lb). Velocity can be measured in any unit of distance per unit of time. Ex: m/s, or ft/min. Knowing this, we can also say that Power is measured in J/s (if we use seconds for time) or N*m/s.
zephyr141
  • zephyr141
could be power where some measurements could be taken are things like resistance, current and voltage?
zephyr141
  • zephyr141
but even then you only really need two to find power...

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anonymous
  • anonymous
@zephyr141 I think N*m/s is similar to what she's looking for. It says 3 measurements, which in this case would be measurements of force, distance, and time. That's just my guess though.

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