Es sabido que las llamadas "balas perdidas" son extremadamente peligrosas, al grado que se aconseja no salir al aire libre en ciertos momentos de fiestas nacionales. Considerando que la rapidez inicial promedio de una bala de bajo calibre es de aproximadamente 300 m/s calcula: a) la altura vertical máxima alcanzada y el tiempo de subida de la bala. b)Considerando que la bala comienza su descenso después de alcanzar su altura máxima ¿con qué rapidez llega al suelo?, c) ¿cuanto tiempo permanece en el aire?

You are about to open a container of soy milk but notice that there are instructions to “shake well before serving.” the soy milk is most likely a

Alead ball is dropped into a lake from a diving board 5m above the water . it hits the water with a certain velocity and then sink with constant velocity in bottom . it reaches the bottom 5 second after it is dropped if g= 10m/s2 . find depth of the lake and average velocity of the ball ?

Antireflective coatings on solar cells are often made by applying a thin film of silicon nitride (sinx), which has an index of refractive of 1.2, on the top of the silicon solar cell, which has a refractive index of about 3.5. however, the sun emits radiation of various wavelengths which the solar cell absorbs, and the antireflective coating can only absolutely minimize the reflection of one of these wavelengths. the coating thickness is chosen to reduce the reflection of green/yellow light (e = 2.2 ev), which is the most intense color in the solar spectrum (shown below). which of the following coatings would minimize reflection of green/yellow light? the answer is 820 nm how? what is the angular width of the central maximum of an electron traveling at 2 x 108 m/s going through a single slit of width 1 mm.