desde la terraza del ultimo piso de un edificio se deja caer libremente un objeto que demora 3s en llegar al suelo. ¿que altura tiene el edificio?

Find the volume of the ellipsoid x^2+y^2+5z^2=36.

What is relative velocity? in which condition is relative velocity known by adding the velocity of the first body and that of the second body

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n