Describe what is happening with the energy in the picture. Use the following words in your description, and then answer the question. kinetic energy, motion, mass, speed, magnitude, energy

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.

The horizontal blue line through the middle of the lens is called the optical axis. as the lamp is moved above or below the axis, keeping the horizontal distance to the center of the lens constant, how does the horizontal distance from the lens to the image change?

You have 80 g of 60oc water and 80 g or 10oc water. what is the final temperature when the two are mixed? explain.