ellinejoy16
ellinejoy16 ellinejoy16
  • 17-12-2020
  • Computers and Technology
contestada

Is a pencil sharpener and open system or a closed system? Defend your answer.

Respuesta :

dabhawashi
dabhawashi dabhawashi
  • 23-12-2020

Answer:

A second class lever has the load located in the middle and the fulcrum and the effort on opposite ends. Examples of second class levers: a wheelbarrow, hand truck, wrench, nutcracker, and the handle to a pencil sharpener. A third class lever has the effort in the middle with the load and fulcrum on opposite ends.

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