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A resistor and an inductor are connected in series. When connected to a 60 Hz, 90 V (rms) source, the voltage drop across the resistor is found to be 55 V (rms) and the power delivered to the circuit is 13 W.
1. Find the resistance.
2. Find the inductance.
A 2 liter aluminum cylinder at 5 °C is filled to the brim with gasoline at the same temperature. If the aluminum and gasoline are warmed to 60 °C, how much gasoline spills out.
Dolphins and other sea creatures can leap to great heights by swimming straight up and exiting the water at a high speed. How much time does it take for the dolphin to come to rest
a certain ideal gas has a value of constant y (which is Cp/Cv) = 4.3. What is the molar specific heat at constant pressure
A girl with a mass of 60kg springs from a trampoline with an initial upward velocity of 8.0 m/s. what is the maximum height that the girl (with box) reaches
A horizontal spring-mass system has low friction, spring stiffness 200 N/m, and mass 0.4 kg. The system is released with an initial compression of the spring of 11 cm and an initial speed of the mass of 3 m/s.
two filaments of current infinitely long and strait that have current with the same magnitude. find the magnetic field
A 58 kg gymnast does a vault. He is traveling at 5.6 m/s just before he lands. He comes to a stop in 0.08 s. What is the average net force acting on him during this time
A coating is applied to a lens to minimize reflections. The index of refraction of the coating is 1.50, and that of the lens is 1.48. If the coating is 177.5 nm thick, what wavelength is minimally reflected for normal incidence in the lowest order? n..
A 90° elbow is used to direct water (? = 1000 kg/m3) flow at a rate of 25 kg/s in a horizontal pipe upward. The di-ameter of the entire elbow is 10 cm. The elbow discharges water into the atmosphere, and thus the pressure at the exit is the local ..
the pressure att he depth of 1.25 m in a tank of liquid is measured to be 125.5 kpa. the tank is open to the outside
A bird, starting from its nest (we'll call that the origin), flies 24.0 km due southeast. It then changes directions and flies 26.0 km in a direction 60° north of east. Find the magnitude and direction of its resultant displacement.
An object with a mass of 5.5 kg is allowed to slide from rest down an inclined plane. What is the speed of the object at the bottom of the plane
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