valeriec94 valeriec94

29-03-2018
Physics

contestada

a perpetual motion machine can never be bill because it is not possible to eliminate

a. momentum
b. inertia
c. elasticity
d. friction

Respuesta :

vinhmai99p69wni vinhmai99p69wni

30-03-2018

The answer is d. friction
Friction and air resistance make these machines impossible

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