la masa sostenida en la mano es de 6 kg. Suponga que la masa del antebrazo y la mano juntos es de 8 kg y que su centro de gravedad (C. G.) está donde se indica en la figura. ¿Cuál es la magnitud de la fuerza muscular (FM)? (g = 10 m/s2). Los ángulos respecto al eje de las X, y las distancias en relación a la articulación del codo y las fuerzas son: FM 50°, 5 cm; CG 30°, 10 cm y el ángulo de la masa 20°, 35 cm. Alguien ayúdeme por favor, necesito la respuesta lo antes posible, daré 25 puntos

Using the work energy theorem. what is the velocity of a 850kg car after starting at rest when 13,000j of work is done to it.

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?

Which are advantages of renewable resources? check all that apply. renewable energy supplies are completely reliable everywhere. some renewable resources will never be used up. little or no waste is produced by renewable resource plants. electricity can be generated in large quantities. many renewable energy facilities have lower operating costs.