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A sample is being dated by the radiocarbon technique. If the sample were uncontaminated, its activity would be 0.064 Bq per gram of carbon. Calculate the true age (in years) of the sample.
Assume the sample is contaminated, so that only 98 percent of its carbon is ancient carbon. The remaining 2 percent is fresh carbon, in the sense that the 6C14 it contains has not had any time to decay. Assuming that the lab technician is unaware of the contamination, find what apparent age (in years) would be determined for the sample? Carbon-14 has a half-life of 5730 years, and an activity of 0.23 Bq per gram of carbon in a living organism.
An oscillating LC circuit has a current amplitude of 10.5 mA, a potential amplitude of 276 mV, and a capacitance of 240 nF. What are the maximum rate at which the inductor gains energy
A 600 turn solenoid, 25 cm long, has a diameter of 2.8 cm. A 10 turn coil is wound tightly around the center of the solenoid. If the current in the solenoid increases uniformly from 0 to 5.0 A in 0.48 s, what would be the induced emf magnitude in the..
Explain the relationship between the wave speed, frequency and wavelength? Find the relationship between wave speed and physical parameters of the string system? Explain how are the two expressions related
Consider a rectangular swimming pool of depth 2.7 m with a width and length of 13 m. What is the force exerted by the water on one of the sidewalls of the pool
A steel rod is 3 cm in diameter at 25 C. A brass ring has an interior diameter of 2.992 cm at 25 C. At what common temperture will the ring just slide into the rod?
Jack and Jill are standing on a crate at rest on the frictionless, horizontal surface of a frozen pond. Jack has a mass of 74.6kg , Jill has a mass of 44.0kg, What is the final speed of the crate if Jill jumps first and then Jack, again in the same..
A roach that runs for its life because you try to hit it with your physics book runs off the horizontal tabletop with a speed of 0.64 m/s. Find the height of the table
A satellite is in a circular orbit around an unknown planet.The satellite has a speed of 1.98 x 104 m/s, and theradius of the orbit is 1.94 x 106 m. What is the orbital speed of the second satellite
A Michelson interferometer is set up for microwaves. Initially the reflectors are located so the detector reads a maximum. Find the wavelength of the microwaves
A silicon solar cell looks like a battery with a 0.48V terminal voltage. what percentage of the energy incident on the cell is converted to electric energy
A point charge q1 = 15.00 microC is held fixed in space. From a horizontal distance of 8.0cm, a small sphere with mass 4.00*10^-3 kg, What is the acceleration of the sphere at the instant
A train on one track moves in the same direction as a second train on the adjacent track. If the frequency heard on the second train is 132 Hertz, find what is its speed
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