Calcula la energía que tendrá un alpinista cuya masa junto con su equipo es de 85 kg cuando va a mitad del camino escalando el monte Everest, el cual tiene una altura de 8850 metros. ¿Cuál será la energía total cuando llegue a la cima del monte?

How many seconds does it take a pebble released from rest off a bridge to fall 29.4 m ? what is the pebble's speed when it has fallen 29.4 m ?

What does the law of conservation of mass state?

The great sandini is a 60.0-kg circus performer who is shot from a cannon (actually a spring gun). you don’t find many men of his caliber, so you him design a new gun. this new gun has a very large spring with a very small mass and a force constant of 1100 n/m that he will compress with a force of 4400 n. the inside of the gun barrel is coated with teflon, so the average friction force will be only 40.0 n during the 4.00 m he moves in the barrel. at what speed will he emerge from the end of the barrel, 2.50 m above his initial rest position?