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A resistance R and a 4.7-H inductance are in series across a 60-Hz ac voltage. The voltage across the resistor is 22 V and the voltage across the inductor is 25 V. Assume that all voltages in this problem are rms voltages.
(a) What is the resistance R?
_________ohm
(b) What is the ac input voltage?
______V
A thin uniform 15 kg post, 1.75 m long is held vertically using a cable and is attached to a 5kg mass and a pivot at its bottom end. Find the angular acceleration of the post about the pivot just after the cable breaks
icyclists in the Tour de France do enormous amounts of work during a race. For example, the average power per kilogram generated by Lance Armstrong (m = 75.0 kg) is 6.50 W per kilogram of his body mass.
A 1100 car traveling at a speed of 40 skids to a halt on wet concrete where = 0.50. How long are the skid marks.
A rotating wheel requires 3.03-s to rotate through 37.0 revolutions. Its angular speed at the end of the 3.03-s interval is 99.0 rad/s
A uniform bar is 5.00 m long and weighs 975 N. A weight of 255 N is attached to one end while a weight of 375 N is attached 1.50 m from the other end. Find the tension in the cable
Charge Q = 17E-8 C is placed in the origin. Location A is -3.00m from the charge while location B is 2.00m from the charge. A) Find the potential difference VB - VA between the two points. B) Which point is at the higher potential? Type either "Po..
A destroyer sends a sonar pulse out to detect a submarine directly below the ship in the ocean. how deep is the submarine
A 20.0-kg mass is supported by two strings. The left string is 2.00 m long and the right string is 5.00 m long. What is the tension in the left side string
Suppose the pressure in a container of soda is 15 atm. At 25oC, the Henry's Law constant for CO2 in water is 1.61 x 103 atm. Estimate the mole fraction of dissolved carbon dioxide in the soda
Consider a plane that flies due east on a trip, and then returns due west following the same exact route. Imagine also that there are no winds in each trip. Flying due east, the plane flies with the rotation of the Earth, while flying due west..
What is the total work done on the block by the applied force as the block moves a distance 10-m up the incline.
A charge of 16.8 ?C is at the geometric center of a cube, What is the electric flux through one of the faces
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