When do tornadoes form?
a. when the air is suddenly heated by a lightning bolt
b. when many storm cells are arranged in a line along a front
c. when raindrops form out of rapidly condensing water vapor
d. when warm air that is near the bottom of a supercell moves in the opposite direction of cold air that is higher up

An object resting on a table weighs 100 n. with what force is the object pushing on the table? with what force is the table pushing on the object? explain how you got your answer.

Is the portion of the electromagnetic spectrum that has a frequency just above that of visible light.

Anoche fuimos al restaurante el gusto. jaime le (1) (pedir) al camarero una mesa en la sección de no fumar. yo (2) (pedir) chuleta de cerdo con champiñones, papas y ensalada y jaime (3) (pedir) mariscos, arroz y ensalada. el restaurante estaba lleno (full) por eso no nos (4) (servir) muy rápido (very fast), pero la comida estaba deliciosa. no me lo vas a creer (you won't believe it) pero ¡jaime (5) (repetir) arroz y mariscos! ¡dos porciones (orders)! ¿ya entiendes por qué él no (6) (dormir) bien anoche?