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A 75 kg skater, starts at 6m above the ground, potential energy =0 at 2m above the ground.
Calculate gravitational potential energy of the skater at the bottom of the track.
Calculate the speed of the skater at the bottom of the track.
Calcualte the percentage difference between the two speeds.
A prescription for a corrective lens calls for +1.50D. The lensmaker grinds the lens from a "blank" with n = 1.56, What should be the radius of curvature of the other surface
A flywheel in a motor is spinning at 580 {rm rpm} when a power failure suddenly occurs. The flywheel has mass 40 {rm kg} and diameter 75 {rm cm}.
A photon with an initial wavelength of 1.390Ã-10-11 m Compton scatters from an electron which is initially at rest. compute the kinetic energy of the scattered electron
A 3.4 kg piece of aluminum at 28°C is placed in 1.0 kg of water in a Styrofoam container at room temperature (20°C)
If a beam of gamma rays with an initial intensity of Io passes through an absorber in which the mean free path lambda = 2.6 mm
When he accelerates from a stoplight, the tassel deflects backward toward the rear of the car hanging at an angle of 6.30° relative to the vertical. Find the tension in the string holding the tassel
You take the elevator to the roof of a midtown skyscraper that is 100 meters high. How far from the side of the buliding will it land
1) Find the net force acting on particle 3 due to the presence of the other two particles. Report you answer as a magnitude and a direction measured from the positive x axis.
A 315 kg sailboat has an acceleration of 0.72 m/s2 at an angle of 33° north of east. compute direction of the net force that acts on the sailboat
An object with a charge of 0.880 µC is placed at the center of a regular icosahedron with 20 equivalent surfaces. find the electric flux through one surface of the icosahedron
If 5.0 ´ 1021 electrons pass through a 20-W resistor in 10 min, what is the potential difference across the resistor
A source of electromagnetic waves radiates power uniformly in all directions at a single frequency. What is the average power radiated by the source
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