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A homogeneous disk of radius R and mass M rolls without slipping on a horizontal surface and is attracted to a point a distance d below the plane. If the force of attraction is proportional to the distance from the disk's center of mass to the force center, find the frequency of oscillations around the position of equilibrium.
Two speakers, one straight behind the other, are each generating a 285 Hz sound wave. What is the smallest separation distance between the speakers that will produce destructive interference at a listener standing in front of them? Suppose that the s..
A small radio operates on 3.00 V and has a resistance of 15 coulomb. At what rate does the radio use electric energy.
A 5g lead bullet travelling at 370-m/s is stopped by a large tree. If half the kinetic energy of the bullet is transformed into internal energy and remains with the bullet whilst the other half is transmitted to the tree, what is the increase in t..
A block starts with a certain speed at the top of a frictionless inclined plane with an unknown angle to the horizontal. To calculate the time required for the block to reach the bottom of the plane.
A ball on a porch rolls 60cm to the porch's edge, drops 40cm, continues rolling on the grass, and eventually stops 80cm from the porch's edge. What is the magnitude of ball's total displacement, in centimeters.
What is the average speed of a rider on this Ferris wheel.
There is a square with 4 charges. q3 is 3x10^-6 C and in the top left q4 is -2x10^-6 C and in the top right q2 is 2x10^-6 C and in the bottom left q1 is 4x10^-6 C and in the bottom left The distance between each charge on the outer edge of the squ..
Find the frictional torque, which is assumed to be constant. Find the moment of inertia of the wheel.
An airplane has a mass of 1.8×10^6 kg , and the air flows past the lower surface of the wings at 94 m/s .f the wings have a surface area of 1300 m^2, how fast should the air flow over the upper surface of the wing if the plane is to stay in the ai..
A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 5.00 g coins stacked over the 15.0 cm mark, the stick is found to balance at the 42.0cm mark. What is the mass of the meter stick
A 5.5- kg concrete block rests on a level table. A 3.1- kg mass is attached to the block by a string passing over a light, what is the coefficient of friction between the block and the table
An ocean liner leaves New York City and travels 19.2 ° north of east for 186km. How far east and how far north has it gone? In other words, what are magnitudes of the components of the ship's displacement vector in the directions (1) due east and ..
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