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Two sinusoidal waves of the same period, by amplitudes of 3.5 and 6.0 mm, travel in the same direction along a stretched string; they produce a resultant wave by amplitude of 9.119 mm. The phase constant of the 3.5 mm wave is 0. What is the stage constant of the 6.0 mm wave?
Consider the transitions 3d -->2p in hydrogen. Calculate the possible energies of emitted photons, taking into account the spin-orbital interaction. How many photon lines are there? Please show formulas and explain clearly
an object is pulled west along a horizontal frictionless surface with a steady horizontal force of 12.0 n. if the
an object of mass m = 6.0 kg hangs from a cord around a light pulley. The length of the cord between point P and the pulley is L = 2.0 m. What must be the linear mass density of the cord
If 58.4kW is to be transmitted over two 0.130Ohm lines, estimate how much power is saved if the voltage is stepped up from 115V to1240V and then down again, rather than simply transmitting at 115V. Suppose the transformers are each 98.8 percent effic..
a rotating wheel requires 7.00s to rotate 26.0revolutions. its angular velocity at the end of the 7.00-s interval
Water has a specific heat capacity of 4186 J/kg C. A tank contains 500 kg of water at 10 C. what is the cost of heating the water
Find the power factor for an RC circuit connected to a 70.0Hz generator with an rms voltage of 155 V
A dog has thick fur, with a thermal conductivity of 0.040W/(m • K). The dog's metabolism produces heat at a rate of45 W, determine what is the outside temperature
Consider a ring of radius R with the total charge Q spread uniformly over its perimeter. What is the potential difference between the point at the center of the ring and a point on its axis a distance 2R from the center
When Brewster's angle of polarized light due to a reflection of light off of the surface of water makes a ray of light, how is the ray of light related to the ray of light that is refracted by the incoming beam into the water?
four point charges q are fixed to the four corners of a square that is 10.2 cm on a side. an electron is suspended
draw a motion diagram, using the particle model, showing the cars velocity vectors as seen from a helicopter hovering over the highway.
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