A skier, of mass 60.0 kg pushes off the top of a hill with an initial speed of 4.00 m/s. Neglecting friction, how fast will she be moving after dropping 10.0 m in elevation?

If the radius of curvature of the cornea is 0.75 cm when the eye is focusing on an object 36.0 cm from the cornea vertex and the indexes of refraction are as described before, what is the distance from the cornea vertex to the retina? express your answer to two significant

Explain what happens at the saturation point when adding salt to water at room temperature.

What would be the strength of earth's gravitational field at a point where an 80.0 kg astronaut would experience a 80% reduction in weight