una onda sonora se propaga a travez del vidrio a 5500 m/s, la longitud de onda vale 11 m. Calcula el periodo y la frecuencia

6–43 a food department is kept at 2128c by a refrigerator in an environment at 308c. the total heat gain to the food department is estimated to be 3300 kj/h and the heat rejection in the condenser is 4800 kj/h. determine the power input to the compressor, in kw and the cop of the refrigerator.

Which bonds are found inside a water molecule

What is a costume plot? why is it important to a film or theater production?