First slide

Power

Question

$N m s^{- 1} i s t h e u n i t o f$

Moderate

A

pressure
B

power
C

potential energy
D

pressure gradient

Solution

$p r e s s u r e P = \frac{F o r c e}{A r e a}; u n i t i s \frac{N}{m^{2}} = N m^{- 2} p o w e r P = \frac{W o r k}{t i m e}; u n i t i s \frac{F o r c e . d i s p l a c e m e n t}{t i m e} = N m s^{- 1} P . E = m g h; u n i t i s N m = J o u l e P r e s s u r e g r a d i e n t = \frac{p r e s s i r e}{d i s \tan c e}; u n i t i s \frac{F o r c e}{A r e a \times l e n g t h} = N m^{- 3}$

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