jennylin29 jennylin29

24-03-2020
Physics

contestada

Help me!!!!!!!!!!!!!!!!!!
1. What is a knife? A wheel and axle, a wedge, a pulley, or a lever?
2. What is an electric fan? A wheel and axle, a wedge, a pulley, or a lever?
3. A human arm works like a simple machine called a _. The elbow works like a _______. A pulley; rope, a lever; fulcrum, a wheel and axle; axle, a pulley; wheel.

HELP

Respuesta :

olmsteadchloe olmsteadchloe

24-03-2020

Answer:

1 . wedge 2 . wheel and axle 3 , have no clue . im sorry

Answer Link

dt113005 dt113005

24-03-2020

Answer:

a knife is a sharp object

Explanation:

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