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light ray enters the atmosphere of the Earth and descends vertically to the surface a distance h = 92 km below. The index of refraction where the light enters the atmosphere is 1.00, and it increases linearly with distance to have the value n = 1.000 293 at the Earth's surface. (a) Over what time interval does the light traverse this path? (b) By what percentage is the time interval larger than that required in the absence of the Earth's atmosphere?
A perfectly reflecting flat mirror is uniformly illuminated by light striking it perpendicularly. Calculate the intensity of the light
Starting from rest, a hammer thrower performs 4 revolutions in 4 seconds before releasing the hammer. What is the centripetal acceleration needed to rotate the hammer
Two ships are moving along a line due east (see figure below). The trailing vessel has a speed relative to a land-based observation point of v1 = 59.5 km/h, What frequency is monitored by the leading ship
A charge of q = +7.50 µC is located in an electric field. The x and y components of the electric field are Ex = 4.80 103 N/C and Ey = 7.40 103 N/C, respectively. (a) What is the magnitude of the force on the charge? (b) Determine the angle that th..
82 L of an ideal monatomic gas is at an absolute pressure of 4.2 atm when the temperature is 25 C. what is the change in the internal energy of the gas
For the typical volume charge density I? = -1.1 A? 10-3 C/m3, what is the difference in the electric potential between the pipe's center and its inside wall
A 52.1-kg high-school student hangs from an overhead bar with both hands, What is the tension in each arm when the arms make an angle of 31.00 o with respect to the vertical
A 30-60-90 prism has an index of refraction of n= 1.6. Light is normally incident on the left side of the prism, what is the angle of refraction with respect to the normal to the back surface
A 3.60-{rm m}-long, 430 {rm kg} steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 66.0 {rm kg} construction worker stands at the far end of the beam. What is the magnitude..
A sinusoidal voltage %u0394v = (75 V) sin (180t) is applied to a series RLC circuit with L = 20 mH, C = 155 %u03BCF, and R = 30 %u03A9. What is the maximum current in the circuit
What is Neptune's semimajor axis of the transfer orbit if the semimajor axis is 4497.1*10^6 and the mass of Neptune over the Earth is 17 and the eccentricity of 0.01?
A disk with mass m = 6.0 kg and radius R = 0.41 m hangs from a rope attached to the ceiling. The disk spins on its axis at a distance r = 1.26 m from the rope and at a frequency f = 18.0 rev/s (with a direction shown by the arrow). 1) What is the mag..
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