Asked by Brooklyn

In a practical machine, the power output is _______ the power input. 

    
A. larger than
B. multiplied by
C. equal to
D. smaller than 

D?
Answered by Ms. Sue
Good heavens! I have no idea!
Answered by Brooklyn
 The main difference between speed and velocity involves 

  
A. weight.
B. gravity.
C. distance.
D. direction.

D?
Answered by Damon
efficiency is maximum 100%, and that is impossible.
Output less than input
D is correct

Yes !!!
for speed you need a speedometer
for velocity you need a speedometer AND a compass
speed = scalar
velocity = vector
Answered by John
Yes.. velocity has a direction and speed does not.

also, above the right answer is D.
Answered by Brooklyn
Thank you guys! :)
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