Un engrane que gira con una velocidad de 20 rad/s, es acelerado durante 5 segundos hasta alcanzar una velocidad de 35 rad/s a) ¿Cuál es la magnitud de su aceleración angular?
b) ¿Cuántos radianes gira en ese tiempo?
c) ¿Cuántas revoluciones alcanza a girar en ese tiempo?

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Which of the following is not a transverse wave? a) soundb) lightc) radiod) all of thesee) none of these

Acommercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at -35°c by rejecting waste heat to cooling water that enters the condenser at 18°c at a rate of 0.25 kg/s and leaves at 26°c. the refrigerant enters the condenser at 1.2 mpa and 50°c. if the compressor consumes 3.3 kw of power, determine (a) the mass flow rate of the refrigerant, (b) the refrigeration load, (c) the cop, and (d) the minimum power input to the compressor for the same refrigeration load.

A1.5m wire carries a 2 a current when a potential difference of 52 v is applied. what is the resistance of the wire?