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A.) How can a spectrogrph be used to indicate that the rings of Saturn are not solid?
B.) Astronomers in the 1940's had difficulty measuring the amount of water in the Martian atmosphere spectroscopically, becuase the Earth's atmospheric water got in the way. They could not yet fly above our atmosphere. How could the spectral lines from the two planets be separated, so that accurate measurements can be made?
C.) A distant star yields a spectrum showing two sets of hydrogen spectral lines: a strong red shifted set, and a weaker blue shifted. How might you interpret this observasion?
A generator connected to an RLC circuit circuit has an rms voltage of 120 V and an rms current of 34 mA. what is the inductive reactance of the circuit
A series circuit contains a 110.0- ohm resistor, a 0.570-H inductor, a 0.440-uF capacitor, and a time-varying source of emf providing 41.0 V. What is the resonant angular frequency of the circuit
In a velocity selector, the uniform magnetic field of 1.6 T is produced by a large magnet. What voltage should be applied across the plates
An object initially at rest explodes in two fragments of masses 2.6 kg and 3.3 kg that move in diametrically opposite directions. find the internal energy of the explosion
A 1.7 kg block and a 2.3 kg block are attached to opposite ends of a light rope. Find the acceleration of the lighter block
What is the percent change in momentum of a proton that accelerates from 0.49c to 0.90c? What is the percent change in momentum of a proton that accelerates from 0.90c to 0.98c?
A woman throws a ball at a vertical wall d = 3.0 m away. The ball is h = 1.5 m above ground when it leaves the woman's hand with an initial velocity of 12 m/s at 45°. How long was the ball in the air after it left the wall
A 150-W lamp is placed into a 120-V AC outlet. What is the resistance of the lamp
q1. a conveyor belt at a quarry lifts 2000 kg of sand per minute up a vertical distance of 12 meters. the sand is at
Two identical diverging lenses are separated by 13 cm. The focal length of each lens is -8.4 cm. Determine the final image distance relative to the lens
The maximum current in a superconducting solenoid can be as large as 3.51 kA. what is the magnitude of the magnetic field it produces
The electron in a hydrogen atom is in the first excited state, What is the quantum number n of the state into which the electron moves
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