La energía oscura aparece en diferentes formas, existen tipos fundamentales de energía. Indique cuál de las siguientes situaciones se refiere a un tipo fundamental de energía.(A) Energía eléctrica en una lámpara encendida.(B) Energía nuclear en una roca de uranio.(C) Energía de movimiento de la manzana al caer de la rama de un árbol.(D) Energía de la radiación solar que afecta la superficie de la Tierra.

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

Find the magnetic field a distance r from the center of a long wire that has radius a and carries a uniform current per unit area j in the positive z direction.

Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.