Calcule la fuerza en el émbolo mayor de una prensa hidráulica, si en el menor se aplica una fuerza de 30 N y los émbolos circulares tienen un área de 4 m2 y el menor un área de 2 m2 .

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?

J. j. thomson’s experiment disproved the theory that an atom

Compare the horizontal displacement of the two balls as they travel to the ground. what do you observe?