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A guitar string is 108 cm long and has a mass of 3.4 g. From the bridge to the support post (L) is 70 cm, and the string is under a tension of 460 N. What is the frequency of the first overtone?
A flashlight beam strikes the surface of a pane of glass (n = 1.58) at a 56 %u2218 angle to the normal. What is the angle of refraction
Calculate the average kinetic energy and the average potential energy for the 2nd excited state of a harmonic oscilator. use expectation values to calculate a quantum mechanical average, show integrations.
What is the velocity of q_{2} when the balls are 0.450 m apart. what is the speed that the bar falls.
A photon whose energy is 1.3 x 10^-14 J is scattered off an electron at an angle of 50 degrees
A block in the shape of a rectangular solid has a cross-sectional area of 4.48 cm2 across its width, a front-to-rear length of 22.1 cm, find the magnitude of the electric field in the block
A charge of 0.43 C is spread uniformly throughout a 36 cm rod of radius 7 mm. What are the volume and linear charge densities
The internal energy of a gas is 1000j. The gas is compressed adiabatically and it's volume deceases by 400cm^3. What is internal energy of gas
q1. a evaluate the temperatures of a blue star and a blue jacket coat by using order of magnitude estimates for
2 stationary positive point charges, charge 1 of magnitude 3.20nC and charge 2 of magnitude 1.60nC, What is the speed Vfinal of the electron when it is 10.0cm from charge 1
A 3.10 kg steel ball strikes a wall with a speed of 10 m/s at an angle of 60 ° with the surface. It bounces off with the same speed and angle. If the ball is in contact with the wall for 0.190 s, what is the average force exerted on the ball by th..
Water is pumped into a storage tank from a well delivering 19.0 gallons of water in 26.0 seconds through a pipe of 1.00 in.2 cross-sectional area. What is the average velocity of the water in the pipe as the water is pumped from the well?
A 1590 kg car starts from rest on a horizontal road and gains a speed of 61 km/h in 30 s (a) what is its kinetic energy at the end of the 30 s.
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