A machine has a mechanical advantage of 5. What force should be applied to the machine to make it apply 3000 N to an object?

Consider a box weight 2700 newtons resting on the ground. If the area of the box touching the ground is 1.5 square meters, what pressure does the box exert on the ground?

The rotting of wood is an example of which of the following reactions?

A snowball accelerates at 23.4 m/s? when a 2.87 N force is exerted on it. What is the mass of the snowball? (Unit = kg)

Whats the rounded Atomic mass of iron?

You walk 20 m north, then 5 meters south. What is your displacement?

What is the oxidation state of a hydrogen atom bound to an iron atom.?

What evidence can you present for the possibility of time travel?

A ball is being rolled by a normal push of 1000N. it is opposed by friction which has a force of 0.3kN and air resistance which has a force of 23N. Calculate the resultant force.

What was the change in internal energy (chemical energy plus thermal energy) of the person pulling the block?

One of the longer sides of a kite is 39 feet. one of the shorter sides is 25 feet. half the length of the shorter diagonal is 15 feet. what is the area of the kite?