List two ways to measure the gravitational potential energy of a ball when it’s dropped from different heights. Please give an argument to support you choices

What do elements in a family tend to share. a.) similar periods b.) similar groups c.) similar atomic symbols d.) similar chemical properties and characteristics

Compare the horizontal displacement of the two balls as they travel to the ground. what do you observe?

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.