- Un piano en una sala de conciertos emite una nota de frecuencia 494 [Hz]. una persona en las cercanías escucha esta nota como si fuera un LA (440 [Hz]). respecto a lo anterior, es correcto
afirmar que la persona
a) se aleja del piano.
b) se acerca al piano.
c) está en reposo muy lejos del piano.
d) está en reposo muy cerca del piano.
e) se mueve en círculos alrededor del piano

A1000-kg weather rocket is launched straight up. the rocket motor provides a constant acceleration for 16-s, then the motor stops. the rocket altitude 20-s after launch is 510-m. you can ignore any effects of air resistance. a. what was the rocket’s acceleration during the first 16-s? b. what is the rocket’s speed as it passes through a cloud 5100-m above the ground?

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =

Select light for the type of wave, adjust the wavelength so that the light is red, and increase the amplitude of the light to the max. then, select the start button at the source location to begin producing the waves. light is a form of electromagnetic wave, containing oscillating electric and magnetic fields. the wave amplitude detector mentioned above shows how the electric field oscillates in time at the location of the probe. the amplitude of the wave at the location of the probe is equal to the maximum electric field measured. how does the amplitude of the wave depend on the distance from the source?