¿En qué tiempo
se desocupará el tanque de agua de su casa, si tiene una altura de 50cm y la velocidad de salida
del agua es de un centímetro cubico en 20 segundos?

Modern physics a photon emitted from an excited hydrogen atom has an energy of 3.02 electron volts. which electron energy-level transition would produce this photon? a. n=1 to n=6 b. n=2 to n=6 c. n=6 to n=1 d. n=6 to n=2 i chose b but the correct answer is d can someone tell me why? and what's the difference?

1. how to locate the image in converging(concave) mirror and diverging (convex) mirror with salt. 2. how to locate the image in a converging (convex) lens and diverging (concave) lens with salt.

Ais a machine that makes work easier when a single force is applied. a simple machine b compound machine c endangered machine d complex machine