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A 150 ohm resistor is connected in series with a 0.250 H inductor. The voltage across the resistor is VR = 3.80 cos (720t) Volts.
(a) Derive an expression for the circuit current.
(b) Determine the inductive reactance of the inductor.
(c) Derive an expression for the voltage VL across the inductor.
Establish the average net force
a 5.0*10^2 N laod is lifted 6.0 m with a pulley. the force exerted on the pulley rope is 165 N and the efficiency is 65 %. how far is the rope pulled
A car travels east at 77 km/h for 6.0 h. It then travels 40.0° east of north at 112 km/h for 6.0 h. What is the average velocity for the trip
determine the speed of the ball after the ball. A positive charge q is fired by a small hole in the positive plate of a capacitor.
A motorcycle has a constant speed of 21.0 m/s as it passes over the top of a hill whose radius of curvature is 132 m. The mass of the motorcycle and driver is 343 kg. Determine the magnitude of the normal force that acts on the cycle.
A 243-g ball falls vertically downward, hitting the floor with a speed of 2.48 m/s, Calculate the magnitude of the change in the ball's momentum
A circular wire loop of radius 11.3 cm carries a current of 3.48 A. What is the magnitude of the torque acting on the loop
It bounces off with the same speed and angle. If the ball is in contact with the wall for 0.151 s, illustrate what is the average force exerted by the wall on the ball?
An evacuated spherical diving bell containing a camera is in the ocean at a depth of 161 m. Find the magnitude of the total force on the port
Calculate the wavelength of light in vacuum that has a frequency of 7.8 108 Hz. and What is its wavelength in carbon tetrachloride
A 0.80kg ball, attached to the end of a horizontal cord, is rotated in a circle of radius 1.1m on a frictionless horizontal surface. what is the maximum speed the ball can have
In an aluminum pot, 0.15 kg of water at 100 degrees c boils away in four minutes. find the temperature at the aluminum-steel interface
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