Calcular el tempo necesario para efectuar una variación de 6x10 -4 Wb en el flujo magnético a otro flujo el cual varia 12x10 -4 Wb, al desplazarse una bobina de 500 vueltas entre los polos de un imán en forma de herradura, el cual genera una Fem (fuerza electromotriz o Voltaje) de 20 voltios.

Asteam power plant operates on an ideal reheat rankine cycle between the pressure limits of 15 mpa and 10 kpa. the mass flow rate of steam through the cycle is 12 kg/s. steam enters both stages of the turbine at 500°c. if the moisture content of the steam at the exit of the low-pressure turbine is not to exceed 10 percent, determine (a) the pressure at which reheating takes place, (b) the total rate of heat input in the boiler, and (c) the thermal efficiency of the cycle. also, show the cycle on a t-s diagram with respect to the saturation lines. (2.15 mpa; 45.0 mw; 42.6%)

Determine the maximum r-value of the polar equation r =3+3 cos 0

Why are graphs useful when interpreting data