NECECITO ENTREGARLO EN 5 MINUTOS, AYUDENME AL MENOS CON DOS 4. Calcule la energía mecánica de un clavadista de 80 kg de una masa. Que se encuentra a 15 m de altura con respecto del suelo y que a esa altura tiene una velocidad caída de 10 m/s 5. Calcule la energía mecánica de una pelota de 0.3 kg que fue lanzada hacia arriba y en su punto más alto está una altura de 20 m

6. Suponga que un corredor parte del reposo y termina la carrera de los 100m en 14s ¿Cuál será la energía cinética del corredor en el instante en que se cruzará la meta?

Sarah and michelle work at a tech company that designs exercise apps. sarah tells michelle she has heard that james, their supervisor, interviewed with a competitor and may be leaving the company, which would open up a management position. what kind of power is sarah exerting?

Asuppose a suitcase has a mass of (m) 30 kg and a net force (n) of 10 kg*m/s. what is the acceleration rate of the suitcasein m/s? show your work to support your answer.

Your starship, the aimless wanderer, lands on the mysterious planet mongo. as chief scientist-engineer, you make the following measurements: a 2.50-kg stone thrown upward from the ground at 14.0 m/s returns to the ground in 5.70 s ; the circumference of mongo at the equator is 2.20×10^5 km ; and there is no appreciable atmosphere on mongo. (a) the starship commander, captain confusion, asks for the following information: what is the mass of mongo? (b) if the aimless wanderer goes into a circular orbit 2.20×10^4 km above the surface of mongo, how many hours will it take the ship to complete one orbit? (c) an unmanned spacecraft is in a circular orbit around the moon, observing the lunar surface from an altitude of 44.0 km . to the dismay of scientists on earth, an electrical fault causes an on-board thruster to fire, decreasing the speed of the spacecraft by 23.0 m/s . if nothing is done to correct its orbit, with what speed (in km/h) will the spacecraft crash into the lunar surface?