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A 5.7 kg block attached to a spring executes simple harmonic motion on a frictionless horizontal surface. At time t=0s, the block has a displacement of -0.70 m, a velocity of -0.80m/s and an acceleration of +2.7m/s^2. What is the amplitude of the motion?
A solenoid of inductance L = 50 mH has a magnetic energy U = 3 x10-4 J with a density u = 0.0042 J/m3, What is the winding density n of the solenoid
A curve of radius 40 m is banked for a design speed of 100 km/h. If the coefficient of static friction is 0.30 (wet pavement), at what range of speeds can a car safely create the curve?
Are there transitions of higher or lower energy that are not seen? How many total transitions are there for hydrogen
A 1.3-µF capacitor is connected to a 4.7-V battery. What is the magnitude of the charge on each plate?
Particle track detectors are used to measure the speed of particles if the lifetime of the particle is known. Particle X has a lifetime of 256.2 ps. What is the average speed of the particles in terms of the speed of light
The plates of a parallel-plate capacitor are 3.00mm apart, and each carries a charge of magnitude 77.0nC. The plates are in vacuum. What is the area of each plate
A 2kg ball traveling to the right with a speed of 4 m/s collides with a 4 kg ball traveling to the left with a speed of 2 m/s. The total momentum of the two balls after the collision is what.
An object with mass m1=%.00kg rests on a frictionless horizontal table and is connected to a table that passes over a pulley and is then fastened to a hanging object with mass m2=10.0kg. Find out the acceleration of each object and the tension cab..
A photon with energy 0.50 eV is barely capable of causing a photoelectric effect when it strikes a metal plate. Find the speed of the released electron far from the nucleus
What is the total magnitude of the magnetic flux by the coil before it is rotated.
A solid ball encounters a 0.760 m vertical rise on the way back to the ball rack. Find the translational speed at the top
A string with a mass of 31 g and a length of 2 m is stretched under a tension of 67 N. How much power must be supplied to the string to generate a traveling wave that has a frequency of 51 Hz and an amplitude of 4 cm.
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