Someone pliz help me is due td Describe work input and work output on a paddle board.

Why is actual mechanical advantage never 100%, and what could you do to it to get it closer to 100%?

List the 6 types of simple machines, and give an example for each.

Choose a compound machine, and explain how and why it is a compound machine.

What is the formula for power, and what do the letters stand for?

What is the formula for mechanical advantage, and what do the letters stand for?