The top of a ladder of inertia m rests against a smooth wall, and the foot rests on the ground. the coefficient of static friction between ground and ladder is μs. part a what is the smallest angle between the ground and the ladder such that the ladder does not slip?

How have the competing explanations' experiments on atoms affected the development of the atomic model?

The diagram shows a boulder rolling down a hill into a valley and then up the opposite hill. at which position does the boulder have the greatest kinetic energy? ab c d

The gun from the crime scene shows tool marks where the serial numbers are ground off. there are also tool marks on the bullets left behind. what information can the tool marks on the bullets and gun provide about the crime? what type of evidence does this information provide, individual or class?