Un motor de 10 CV de potencia y un rendimiento del 30 % se utiliza para elevar 1000 L de agua desde un pozo de 25 m de profundidad:
a) ¿Cuánto trabajo realiza el motor?
b) ¿Qué cantidad de energía debemos suministrar al motor? Calcúlala en J y en kWh.
c) ¿Cuánto tiempo emplea en subir el agua?

How can waves travel through ground?

The amount of work done is determined by 2 factors. describe an example of work (using the scientific definition) list the 2 factors that determine the amount of work done.

An astronaut on the moon throws a baseball upward. the astronaut is 6 ft, 6 in. tall, and the initial velocity of the ball is 3030 ft per sec. the height s of the ball in feet is given by the equation s equals negative 2.7 t squared plus 30 t plus 6.5s=−2.7t2+30t+6.5, where t is the number of seconds after the ball was thrown. complete parts a and b.