The ratio of the work output to the work input is called the___

The ratio of useful work output to total work input is mechanical advantage. ... T/F: The unit of work is called the joule. true. T/F: The energy an object has by virtue of its motion is its kinetic energy

Explanation:

diagram is missing, but i will try to explain your doubt.

answer:

amplitude is the maximum displacement or distance moved on a point of a vibrating body or wave measured from its equilibrium position.it is equal to half the length of vibration path.

i need the answer to this too but idk it ; -;