¿Desde qué altura debe caer el agua de una presa para golpear la rueda de la turbina a 40 m/s?

Avector of magnitude 2 cannot be added to a vector of magnitude 3 so that the magnitude of the resultant is a. zero b. 1 c. 3 d. 5 e. 7

Anika asks eva to roll a basketball and then a bowling ball to her. which requires more force to roll, and why?

Which statement describes the formation of our sun? a disk formed of long trails of stars coiled into a spiral. it formed an elliptical flattened disk. heat and gases contracted within a nebula. gravity pushed stars away from a center core.