True or false. on a distance-versus-time graph, a speed of zero would appear as a horizontal line.

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.

What component of earth’s atmosphere exists entirely as a result of photosynthesis?

Amagnetic field applies forces on: a)static chargesb)moving chargesc)water flow