2. Un calentador de agua eléctrico opera automáticamente durante 2.0 horas diarias, a) Si el costo de la electricidad es de $ 1.20 por kWh, ¿cuál es el costo de operación del calentador durante 30
dias? b) ¿Cuál es la resistencia efectiva de un calentador de agua tipico? (Potencia = 4500 Watts,
Intensidad de corriente = 40 Amperes (A).
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FÓRMULA (S)

Iwould sure like to answer your question but i honestly just don’t know

The rearrangement of particles in a physical change. hope this

Answertraveling around a circular trackexplanation"traveling around a circular track" is the best answer as you could be traveling around a circular track at a constant speed. your velocity would therefore have the same magnitude but will always be constantly direction. since acceleration is the rate of change of velocity, the rate of change will only involve the direction of velocity and not the magnitude.wrong choices: "an object at rest" does not accelerate at all"increasing speed while traveling around a curve" means that the acceleration will not be constant due to only change in direction; it will be constant due to both magnitude and direction"an object in free fall" does not necessarily change direction 

Answerthe valence of an element or radical is equal to the number of positive or negative charges on the ion.