Consider the objects on the coordinate grid: a rod with m1 = 5.75 kg, a right triangle with m2 = 38.0 kg, and a square with m3 = 4.70 kg. calculate the center of gravity for the system. assume the objects are uniform. (give the coordinates of the center of gravity in m.)

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 substances that are necessary for producing of certain hormones and that store and transport vitamins

Why does lightning travel from clouds to the ground?