A note of frequency 2000Hz has a velocity of 400 ms! What is the wavelength of the note?

Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.

What is the largest meteoroid that has collided with this planet

En casa de inés el gasto de electricidad supone un doceavo del presupuesto mensual de ese gasto cuatro quintos corresponde al consumo de los electrodomésticos y de este consumo tres cuartos corresponden los aparatos de la cocina si la gasto de los aparatos de la cocina fue de 80 € al mes pasado cuál era el presupuesto completo