Arock with a mass of 2.0 kg falls from a cliff. at a height of 5.0 meters, its velocity is 6.0 m/s. what is the mechanical energy of the rock?

Porque crees que el agua no podia subir mas de 10 m de altura con ese tipo de bomba

Anybody wanna ? (picture included? )

Thomas his older brothers, who own a junk yard, on the weekends to earn extra money. he likes to them push broken-down cars to the back of the junk yard because it makes him feel strong. last saturday, they pushed three cars with different weights, and he noticed he used different amounts of force for each one. the cars were the following weights: white car: 2,700 kg red car: 1,500 kg blue car: 2,100 kg think about how much force is needed to move each car. which correctly lists the cars in order from the most to least amount of force needed to move them? a) white, blue, red b) blue, red, white c) red, white, blue d) white, red, blue