Tires are caused by the force of gravity from the sun and moon acting on earth true or false

Spend time observing or thinking about events that involve matter and energy. which events can you explain? which events can’t you explain?

What is the angular momentum of the bar about the axle?

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.