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Four masses M in deep space are connected by four identical light springs with spring constant k and equilibrium length L. The four mass, four spring assembly is square and lies in a plane; all four masses are rotating with ?=sqrt k/M in uniform circular motion about an axis perpendicular to the plane and equidistant from all four masses. What is the kinetic energy of this system?
What is the velocity of a beam of electrons that goes undeflected when moving perpendicular to an electric and magnetic fields
A 100-turn square wire coil of area 0.04m2 rotates about a vertical axis at 1500 rev/min, as indicated. The horizontal component of the Earth's magnetic field at the location of the loop is 2.0 × 10-5 T. compute the maximum emf induced in the coil..
What is the speed of the arrow as it leaves the bow. At a height of 5 meters above the surface of a lake, a sound pulse is generated. The echo from the bottom of the lake returns to point of origin 0.130 s later. The air and water temperatures are ..
An electron is in the ground state of an infinite square well. The energy of the ground state is E1 = 1.26 eV. What is the width of the square well
An AM radio transmitter broadcasts 47.0 kW of power uniformly in all directions, What is the maximum electric field strength at this distance
how far did the last car travel before momentarily coming to a rest. A 3 kg block accelerates at a rate twice that of a 6 kg block. Is the net force acting on the 3kg block twice as large as that acting on 6kg block.
A person travels by car from one city to another with different constant speeds between pairs of cities. She drives for 30.0 min at 90.0 km/h, 5.0 min at 90.0 km/h, Determine the average speed for the trip
A charge q= +5.80 uC is located in the center of a regular tetrahedron, Find the total electric flux through the tetrahedron, the electic flux through one face of the tetrahedron
A 0.24-kg ball on a stick is whirled on a vertical circle at a constant speed. calculate the tension in the stick
A block with mass of 4.52 kg is attached to a horizontal spring with spring constant k = 3.59 102 N/m, Find the speed of the block at the equilibrium point
Suppose a car is traveling at 13.0 m/s, and the driver sees a traffic light turn red. After 0.570 s has elapsed (the reaction time), the driver applies the brakes, and the car decelerates at 9.00 m/s2. What is the stopping distance of the car, as ..
A truck traveling at 60 mi/h brakes to a stop in 180 ft. What was the stopping time
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