What applies to a real machine?

An object has initial velocity in the upward direction a final velocity in the downward direction and undergoes constant acceleration What can you say about its average acceleration? What do you feel when you shake something to and fro what do you feel when you hold it against the pull of gravity? Is there a anti gravity button in a spaceship? The fact that desert sand is very hot in the day and very cold at night is evidence that sand has a low specific heat capacity or high specific heat capacity? Which word best describes Larry Reyes according to the narrator in gravity? What is small particle? What problem was thomas Edison trying to solve? What is the difference between the British gallon and a us gallon? Things that go back and forth? What does 80 joules equal to foot pounds energy? How does the mandibles work? What is a circumference on a pulley? Why light and heat is both important? How fast are you going if you are in a 90g crash? How to see erased letters on paper? What are 3 good electrical conductors? What are two ways to induce a larger electric current when you move a magnet in a coil of wires? When an item is traveling at a constant speed what must be true about the forces acting on that object? Why are parallax errors considered systematic errors? How is energy lost from power stations?

What applies to a real machine?