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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 Doppler effect?
A bar has a 20N weight at one end. You have a weight of 15N to hang somewhere on the bar so that the bar is in equilibrium. Where would you hang the 15 N weight on each of these ba
Ferromagnetic substances: on the basis of domain theory A. 1. In a ferro magnetic substance, large no. of domains occur. 2. The direction of magnetisation with in a
a) Three charges, every equal to 1 micro coulomb, are placed at the three corners of a square of side 1 m. Find the electric field at the fourth corner. b) Determine the electri
A universe is spatially flat, and contains both matter and a cosmological constant. For what value of Om,0 is t0 exactly equal to H0 -1?
Force in Two and Three Dimensions - Pressure and Fluids Pressure is a force exerted over an area and is measured in Pascals (Pa). P (in Pa) = Force (in newtons) / area (
two vectors 40N and 30N act at acute angle 3o degrees to each other find the resultant vector using analytical method
A charge of 2.00x 10 -6 C is moved against a constant electric field. If 4.50 x 10 -4 J of work is done on the charge. what is the potential difference between the initial an
Define the characteristics of Heterojunction laser. Heterojunction laser: The threshold current density for homojunction lasers is extremely large because of poor optical an
Determine the divergence of the vector field at (1, 1, 0).
Q. Explain the steps to the scientific notation? Answer:- To write in scientific notation you must first move the decimal point of the number to where the number is betwee
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