"El sonido" - Una señal de un sonar en el agua posee una frecuencia de1000000 Hz y una longitud de onda de 1.5mm. ¿ Cual es la velocidad de la Señal en el agua?

¿ cual es su periodo?

¿ cual es su periodo en el aire?

quien me ayuda

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Describe the function of the endomembrane system? what organelles are involved?

70 give a real life example showing how sensory neurons work with the motor neurons

An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. but she does have devices to measure distance and time accurately. she knows her own mass is 77.4 kg , but she is unsure of the mass of a large gas canister in the airless rocket. when this canister is approaching her at 3.50 m/s , she pushes against it, which slows it down to 1.30 m/s (but does not reverse it) and gives her a speed of 2.60 m/s . what is the mass of the canister?