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As an electron in a cold hydrogen atom "flips" to align its magnetic moment with the B-field that surrounds its proton, a photon with wavelength 0.210 m is made (induced). Calculate the frequency and energy of this photon.
Unpolarized light of intensity I0 is incident on three polarizing filters. What light intensity emerges from the third filter
an RLC series circuit consists of a 24 V (rms) 0.50 Hz AC power supply, a 25 ohm resister, a 10 H inductor, and a 0.050 F capacitor, what is the rms current through the inductor
A single loop of wire with an area of 0.0900 m2 is in a uniform magnetic field that has an initial value of 3.80 T, is vertical to the plane of the loop, and is decreasing at a constant rate of 0.190 T/s.
Assume that plane continues to fly with the similar velocity
Scientists have recently shown that a sample of cocaine can be traced to its country of origin by measuring the ration of carbon-13 to nitrogen-15 (both naturally occuring, stable nuclides) in the cocaine sample.
Suppose the projectile is traveling 85.0 m/s at its maximum height of y = 272 m. Explain how much work has been done on the projectile by air friction?
A 20 g ball is fired horizontally with initial speed v_0 toward a 110 g ball that is hanging motionless from a 1.10 m-long string. The balls undergo a head-on, perfectly elastic collision, after which the 110 g ball swings out to a maximum angle t..
An AC voltage of the form ?v = (100 V) sin(1000t) is applied to a series RLC circuit. Find the average power delivered to the circuit
Though slow on land, the leatherback turtle holds record for the fastest water speed of any reptile: 9.78 m/s. It is also among the largest of reptiles. Assume the largest leatherback yet discovered were to swim at the top leatherback speed. If its k..
Suppose a spaceship runs out of fuel near a star. The crew erects a square, white sail 7.06 km on a side, Find the temperature of the star's surface
On a roller coaster the first hill has a height of 30m while the second hill as a height of 15m. what is its speed at the top of the second hill
q1. on a very muddy football field a 110kg linebacker tackles an 85kg halfback. immediately before the collision
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