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In certain ranges of a piano keyboard, more than one string is tuned to the same note to provide extra loudness. For example, the note at 110 Hz has two strings at this frequency. If one string slips from its normal tension of 600 N to 540 N, what beat frequency is heard when the hammer strikes the two strings simultaneously?
How can electricity make magnetic fields? In 1820, Oersted discovered that an electric current can produce a magnetic field. He happened to notice a compass move when he conn
Explain Squirrel- cage rotor Squirrel- cage rotor having of a slotted laminated core of sheet-steel. The slots of the rotor are not always parallel to the slots on the stator,
Q. Define roentgen and activity and Curie? One roentgen (1R) is described as the quantity of radiation which produces 1.6 × 10 12 pairs of ions in 1 gram of air. The activi
Davisson-Germer experiment (C.J. Davisson, L.H. Germer; 1927) An experiment which conclusively confirmed the wave nature of electrons; diffraction patterns were observed throu
An 8 kilogram mass resting on a frictionless horizontal surface is attached to a spring with a force constant of 50 Newtons per meter. If the velocity of the mass by the equi
Can you explain Doppler effect? Find a mathematical expression for the apparent frequency heard when the source is in motion and the listener is at rest and also give limitation of
A cyclotron with dee radius 45.9 cm is operated at an oscillator frequency of 12.9 MHz to accelerate protons. (a) What magnitude B of magnetic field is required to achieve resonanc
It is jut a field of physics which is made to understand the concept of fluids better ,you may not seek the benefit right now ,but can know the concept,and the application of it in
A merry-go-round in the park has a radius of 2.6 m and a moment of inertia of 1773 kg.m 2 What is the mass of the merry-go-round?
For the circuit shown in Figure, find, using the superposition theorem, (a) The current flowing in and the p.d. across the resistor, (b) The current in the 8V battery and
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