Question

D. Fill in the blanks.
1. The force applied to a machine to do work is called
2. A physical balance is a lever of
class.
3. A pulley changes the
... of force.
4. Normally the efficiency of a machine is
5. Screw is a type of
than 1.​

Answer 1

Answer:

1. input force

3. direction

4. percentage

5.mechanism

Explanation:

PLEASE MAKE IT AS THE BRAINIEST ANSWER...

Answer 2

answer

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