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A solid cylinder of mass 10 kg is pivoted about a frictionless axis thought the center 0. A rope wrapped around the outer radius R1=1.0m, exerts a force f1= 5.0 N to the right. A second rope wrapped around another section of radius r2=.50m exerrts a force f2=6.0N downward. what is the angular acceleration of the disk?
Two equal length strips of aluminum and steel are heated. Which expands more? How much more - that is, by what factor is one expansion greater than the other?
Water is ejected from a garden hose of radius 1.07 cm at a speed of 4.57 m/s. Find the flow rate through the hose
The three charged particles in the figure below are at the vertices of an isosceles triangle (where d = 3.80 cm). calculate the electric potential at point A, the midpoint of the base
A barge has a mass of 27,500 kg and is 13.2 meters wide and 31.5 m long. Find the mass of the iron one that the barge is carrying
Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 1.40×106N , What is the total work done by the two tugboats on the supertanker
You have 30 tuning forks that oscillate at close but different frequencies. What are the minimum number of different beat frequencies you can produce by sounding the forks 2 at a time
The voltage and power ratings of a particular light bulb, which are its normal operating values, are 110 V and 60 W. what is the operating voltage of the bulb
Suppose you want to run some apparatus that is 85 from an electric outlet. What voltage will be applied to your apparatus
An elastic cord is 65 cm long while a weight of 56 N hangs from it and is 82 cm long while a weight of 84 N hangs from it. What is the spring constant of this elastic cord.
In a "Rotor-ride" at a carnival, people pay money to be rotated in a vertical cylindrically walled "room." what is the minimum coefficient of static friction so that the people will not slip down
A large capacitance of 1.20 mF is needed for a certain application. Calculate the volume of Teflon alone in the capacitor
A lens for a 35-mm camera has a focal length given by f = 47 mm. What is the magnification of the image on the film
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