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A certain organ pipe, open at both ends, produces a fundamental frequency of 252Hz in air. If the pipe is filled with helium at the same temperature, what fundamental frequency f He will it produce? Take the molar mass of air to be 28.8g/mol and the molar mass of helium to be 4.00g/mol.
A proton is located at the origin, and a second proton is located on the x-axis at x=6.00 fm. (a) compute the electric potential energy associated with this configuration.
Two stretched cables both experience the same stress. The first cable has a radius of 3.63 multiply.gif 10-3 m, Determine the stretching force acting on the second cable
A steel wire in a piano has a length of 0.60- m and a mass of 4.5 x10-3 kg. To what tension must this wire be stretched in order that the fundamental vibration correspond to middle C (fC = 261.6 Hz on the chromatic musical scale).
1200 KVA TRANSFORMER CHANGES TEH INCOMING VOLTAGE FROM 1200 VOLTS TO 400 VOLTS. WHAT IS THE INCOMING CURRENT
The rotor in a certain electric motor is a flat, rectangular coil with 82 turns of wire and dimensions 2.25 cm by 3.88 cm. The rotor rotates in a uniform magnetic field of 0.800 T. Find the maximum torque acting on the rotor
An RLC circuit consists of a 170 resistor, a 21.0 µF capacitor, and a 510 mH inductor, compute the phase angle between the current and the applied voltage
An 8,000 rocket is shot straight up from the Earth's surface with the initial speed of 800 m/s. How high does it go.
Two charges A and B are fixed in place, at different distances from a certain spot. At this spot the potentials due to the two charges are equal, Calculate the ratio qB/qA of the charges
The coefficient of friction between his clothes and Earth is 0.70. He slides so that his speed is zero just as he reaches the base. Evaluate how far does he slide?
The force on a string is 198 N and the string's linear mass is 1.9 kg/m. What is the speed of waves on the string
Two very thick equally-magmetized square plates of side 0.23m and of mass 20 g, Calculate the B field between the two plates, if the distance between them is 0.123 cm
A picture window has dimensions of 1.40 m×2.50m and is made of glass 5.50mm thick. At what rate is heat being lost through the window by conduction
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