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The wavelength of a spectral line measured to he lambda on I Earth is found to increase by 50% on a far distant galaxy. What is the speed of the galaxy relative to earth?
A beam of unpolarized light in air strikes a flat piece of glass at an angle of incidence 54.2 degrees. what is the index reflection of the glass
An electron enters a region of space containing a uniform 0.0000199-T magnetic field. Its speed is 199 m/s and it enters perpendicularly to the field. Find the radius of the electron's orbit
After the Sun exhausts its nuclear fuel, its ultimate fate will be to collapse to a white dwarf state. Calculate the surface free-fall acceleration
In an English carnival game, you throw a ball at a coconut on a stand 4.0 m in front of you and 1.0 m above the point at which you release the ball. How long is the ball in the air in each case
A 8.85- g bullet from a 9-mm pistol has a velocity of 376.0 m/s. what was the velocity of the bullet as it emerged from the block
A boat must cross a 260-m-wide river and arrive at a point 110 m upstream from where it starts, What is the speed of the boat in still water
The electric field just above the surface of the charged drum of a photocopying machine has a magnitude E of 2.7 x 105 N/C. What is the total charge in coulombs on the drum
A parallel-plate capacitor has a capacitance of 10mF and is charged with a 20-V power supply. What is the voltage now across the capacitor
Two electrons are fixed3.6cm apart. Another electron is shot from infinity and stops midway between the two. What is its initial speed
A group of college students eager to get to Florida on a spring break drove the 795-mi trip with only minimum stops. How many hours did the trip take
A circuit consists of an idealized 166 mH inductor and a 45.8 muF capacitor. What is the natural (linear) frequency of the circuit if the capacitor is first charged to 161 muC, What is the maximum energy stored in the inductor
A vertical spring with a spring constant of 440 N/m is mounted on the floor. what height (in cm) above the compressed spring was the block dropped
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