Is balancing .
Hope this is helpful
Answer:
Bicycle
Explanation:
A compound machine is a machine which is a combination of simple machines.
Simple machines are like the pulley, inclined plane or a screw.
Suppose a bicycle is considered, it has more than one simple machine combined together, for it to work. Wheel and axle is one of them and the beam which is pivoted at a fixed hinge is another simple machine in it.
The pedals of the bicycle function as the lever.
Answer:
i think it is iron
Explanation:
its the only one that makes sense to me
The focal point of a concave mirror is halfway along the radius, therefore the radius would be 2•16= 32 cm