Which is a chemical property that can be used to identify calcium carbonate?

The plum pudding model of the atom state that ?

What is the speed of an object at a given moment?

The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.