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An object suspended from a spring vibrates with simple harmonic motion.
A. At an instant when the displacement of the object is equal to one-half the amplitude, what fraction of the total energy of the system is kinetic?
B. At an instant when the displacement of the object is equal to one-half the amplitude, what fraction of the total energy of the system is potential?
Assume all temperatures to be exact, and neglect significant figures for small changes in dimension. What is the corresponding change on the Fahrenheit scale
You can excite waves in a string of length 1.142 m fixed at both ends. You started from an arbitrarily low frequency and increased it slowly. What is the speed of the wave in the medium in m/s
If the plant produces electric energy at the rate of 1.3GW , how much exhaust heat is discharged per hour
Source charge Q1= -3.00nC located at (0, 5.00mm). Source charge Q2= +2.00nC located at the origin. Find the Magnitude & direction of the net electric field
Consider a universe in which Einstein's postulates and special relativity are valid but the speed of light c = 200 miles/hour. A Toyota with proper length L and a Bentley with proper length 3L are racing.
A radar system can measure the time delay between the transmitted and reflected wave pulses from a distant airplane with an accuracy of 1.02 picoseconds. What is the accuracy in the calculated distance to the plane
A cube made of steel 0.300 meters on a side is suspended from a scale until it is completely immersed in fresh water
A car traveling at 21 {rm m/s} runs out of gas while traveling up a 25^circ slope. How far up the hill would it coast before starting to roll back down.
The charge experiences a magnetic force of 7.41 10-3 N. A second charge q2 = 4.00 µC travels at an angle of 40.0° with respect to the same magnetic field and experiences a 1.80 10-3-N force. Identify the magnitude of the magnetic field and the ..
What is the current in the circuit when all six lamps and the heater are turned on? If the circuit has a fuse which will melt if the current exceeds 12 A, will fuse melt.
A softball player swings a bat accelerating it from rest to 2.6 rev/s in a time of .20s. compute the torque the player applies to one end of it
Unpolarized light with an intensity of 660 W / m2 is incident on a polarizer with an unknown axis. What is the angle between the axes of the polarizers
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