Question

All big machines are the combination of
A. More big machines
B. Two big and one small machine
C. One simple machine
D. One or more types of simple
machines​

Answer 1

Answer:

(c) One simple machine

Simple machine, any of several devices with few or no moving parts that are used to modify motion and the magnitude of a force in order to perform work. They are the simplest mechanisms known that can use leverage (or mechanical advantage) to increase force. The simple machines are the inclined plane, lever, wedge, wheel and axle, pulley, and screw.

Explanation:

hope it would be helpful for u

Answer 2

D) One or more types of simple machines

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