Amachine is designed to lift an object with a weight of 12 newtons. if the input force for the machine is setat 4 newtons, what is the mechanical advantage of the machine?

How many neutrons does element x have if it’s stormy umber is 33 and it’s mass number is 95?

Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?

Astronomers studying the planet of rhombus have detected sedimentary rock on its surface. one astronomer wonders if material in this sedimentary rock used to be in igneous rock deep in rhombus’s interior. can igneous rock become sedimentary rock? explain your answer.