Comenzando desde el principio, una persona camina 6 km al este durante el primer día y 3 km al este el día siguiente. ¿Cuál es el desplazamiento neto de la persona desde el punto de partida en dos días? A) 6km, oeste
B) 3km, este
C) 10km, este
D) 5km, oeste
E) 9km, este

In a system, when potential energy decreases, then entropy also decreases. true false

Samir watches a 100-minute movie on his spaceship. maria's spaceshipe flies in the same direction as samir's spaceship but she observes his move to last 125 minutes and his spaceship to be 40 m long. how long does samir observe his own spaceship to be? 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 marias voyage take according to samir?

The radius of an atom is closest in size to a