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A light pipe consists of a central strand of material surrounded by an outer coating. The interior portion of the pipe has an index of refraction of 1.60 . If all rays striking the interior walls of the pipe with incident angles greater than 60 degree are subject to total internal reflection, what is the index of refraction of the coating?
What is the net electric force acting on particle.
Suppose a car accelerates from rest, speeding up at a rate of +2.5m/s^2 while traveling a distance of 79 meters. How much time did it take the car to travel its TOTAL distance
In a RLC circuit, the rms current is 7.00 A, the maximum voltage 230. V and the current lags behind the voltage by 53.0 degrees. Find the average power dissipated in the circuit
The moon orbits the earth at a distance of 3.85 x 10^8 m. Assume that this distance is between the centers of the earth and the moon and that the mass of the earth is 5.98 x 10^24 kg. Find the period (in days) for the moon’s motion around the earth.
Two meters from the left end is the 500 N washing equipment. Joe is 0.500 m from the right end and weighs 920 N. Given that the scaffold is in rotational and translational equilibrium, illustrate what are the forces on each cable?
An engine absorbs 1.68 kJ from a hot reservoir at 277°C and expels 1.23 kJ to a cold reservoir at 27°C in each cycle. How much work is done by the engine in each cycle
A hot air balloon has just lifted off and is rising at the constant rate of 1.70 m/s. How high is the passenger when the camera reaches her
A solenoid is to have an inductance of 0.274 mH, a cross-sectional area of 5.73 10-4 m2, and a length of 37.9 cm. How many turns per unit length should it have
stationary L = 3.02-m board of mass 4.56 kg is hinged at one end. A force F is applied vertically at the other end, and the board makes a ? = 31.4° angle with the horizontal. Calculate the force exerted by the hinge
A jet plane is flying with a constant speed along a straight line, at an angle of 30.0? above the horizontal. The plane has a weight W? of magnitude 86,500N, What is the magnitude of the thrust force
An electron is at the origin. (a) Calculate the electric potential VA at point A, x = 0.160 cm. V (b) Calculate the electric potential VB at point B, x = 0.170 cm. V What is the potential difference VB - VA? V
q1. a basketball player achieves a hang time of .658 s in dunking the ball. what vertical height will he attain? the
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