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The hydrogen alpha emission spectra has a 658.28 nanometer wavelength. What is the red-shifted wavelength of hydrogen alpha light from the bootes galaxy cluster that is moving away from us(the earth, the solar system and the milky way galaxy) at 39,000 kilometers per second?
Oil with index of refracton n=1.25 floats on water with index n=1.33. For normal incidence, what maximum film thickness will reflect red light of wavelength 650nm most strongly
a spherical drop of water carrying a charge of 90pc has a potential of 270 v at its surface, what is the potential in the new drop
A coin is placed 18.0cm from the axis of a rotating turntable of variable speed. obtain the coefficient of static friction between the coin and the turntable
A beam consisting of 8.22x10^16 electrons/sec passes through a region of vacuum. A) What magnetic field would be measured 1.50cm away from the center of the beam?
Light from a helium-neon laser (? = 633 nm) passes through a circular aperture, What is the diameter (in mm) of the hole
If the coefficient of friction between the block and the floor is 0.40, what is the mass of the block.
Jupiter emits radio waves and also visible light (reflected Sunlight). Which of the following statements about the light we detect from Jupiter is true.
The strength of the magnetic field within a solenoid is B = 3.4 × 10-2 T, single loop is placed in the solenoid parallel to the plane of each loop in the solenoid, What is the total number of turns of the solenoid
assume that a receiver has first amplifier stage with a 5k ohms input resistance, a power gain of 300, an input audio signal of 20uV, and an operating temperature of 27 Celsius.
You have a 2.01-m-long stretched string with a mass of 19.5 g. When you oscillate the string at 440 Hz, Calculate the tension in the string
An alpha particle (a helium nucleus) is traveling along the positive x-axis at 1350 m/s, How far does the particle travel before hitting the tube wall
A 110kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 350N. For the first 15.00 m the floor is frictionless and for next 15 m the coefficient of friction is 0.30. What is the final speed of the crate.
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