"El sonido" 1_ Una onda sonora se produce durante 0.5 s. Posee una longitud de onda de 0.7 metros y una velocidad de 340 m/s.

¿ Cual es la

frecuencia de la onda?

¿ cuantas ondas completas se emiten en tal

intervalo de tiempo?

¿ luego de 0.5 segundos a que distancia se

encuentra al frente de la onda sonora?

quien me ayuda o que me explique
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Abatter hits the baseball a with an initial velocity of v0 = 110 ft/sec directly toward fielder b at an angle of 23° to the horizontal; the initial position of the ball is 2.2 ft above ground level. fielder b requires 0.44 sec to judge where the ball should be caught and begins moving to that position with constant speed. because of great experience, fielder b chooses his running speed so that he arrives at the “catch position” simultaneously with the baseball. the catch position is the field location at which the ball altitude is 8.4 ft. determine the velocity of the ball relative to the fielder at the instant the catch is made.

Let f(x) = x4- 8x2 . find the relativeextrema of this function using the second derivative test.

Estimate the change in the gibbs energy and molar gibbs energy of 1.0dm3 of octane when the pressure acting on it is increased from 1.0 atm to 100 atm. the mass density of octane is 0.703 g cm−3