1. Una niña deja caer una muñeca desde una ventana que está a 80 metros de la altura sobre el suelo. Calcular: a) ¿Qué tiempo tardará en caer?, b) La velocidad con que llega

The graph below represents the work done by a student while running up flights of stairs. determine the student's power output after 10 seconds: 1600 j/s 8000 j/s 160 j/s 800 j/s

According to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does maria's voyage take according to samir?

Diverging mirrors and lenses always produce images