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A heavy piece of hanging sculpture is suspended by a 90 cm-long, 5.0g steel wire. When the wind blows hard, the wire hums at its fundamental frequency of 70Hz.
A) What is the mass of the sculpture?
A massless string is wrapped around a solid disk of mass m_1 and tied to a block of mass m_2. The disk is free to rotate on a frictionless horizontal axle.
Two point charges of +1.0nC (located at x=1.0m), Calculate the magnitude of the net electric field at the apex of the triangle
A charge of +2.00 x 10^-9 C is placed at x = 0.0 m. A second charge of +4.00 x 10^-9 C is placed at x = 1.5 m.
Suppose a block of mass 5 kg is resting on a horizontal surface and coefficient of static friction between block and surface is 0.2. What is the reaction on the block by the vertical wall
A solid, frictionless cylindrical pulley with a mass of 3kg and a 0.420 m radius is used to draw water from a well. A 1.50kg bucket is attached to a cord that is wrapped around the pulley. If the bucket starts from rest at the top of the well and ..
A small block is released from rest at the top of a frictionless incline. The block travels a distance 0.263 m in the first second after it is released
A meter stick is found to balance at the 49.7-cm mark when placed on a fulcrum. What is the mass of the meter stick
A single electron orbits a lithium nucleus that contains three protons (+3e). The radius of the orbit is 2.20 × 10-11 m. Determine the kinetic energy of the electron.
Consider a cell that has a magnetic bead attached to it. We will treat the cell as a Kelvin body. Suppose that the magnetic field has been turned on for a very long time and is producing a constant force Fo.
The fastest possible rate of rotation of a planet is that for which the gravitational force on material at the equator barely provides the centripetal force needed for the rotation. evaluate the shortest period of rotation
A 2.5-mC charge is on the y-axis at y=3.0 m and a 6.3-mC charge is on the x-axis at x=3.0 m. What is the direction of the electric potential at the origin
If the speed of the wave is 10 percent less in the organ than in the medium above, determine the depth of the tumor below the organ's surface.
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