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Explain two assumptions behind Kelvin Helmholtz timescale
Physics
A boat is floating at rest in a dense fog near a large cliff. The captain sounds its horn at water level and the sound travels through the salt water (1470 m/s) and the air (340m/s). The echo in the water (due to the cliff) takes 0.40s to return. How much additional time will it take for the echo in the air to travel?
Calculate the kinetic energy required to drive a fluid of density 0.004kg/m3 through a vertical pipe of height 100m maintained at a pressure of 0.02N/m2 and 0.08N/m2 at each end respectively
Find the energy released in the alpha decay
238
92 U →234
90 T h +
4
2 He.
238
92 U →234
90 T h +
4
2 He.
Sodium is a monovalent metal having a density of 0.971 g/cm3 and a molar
mass of 23.0 g/mol. Use this information to calculate (i) the density of charge
carriers and (ii) the Fermi energy of sodium.
mass of 23.0 g/mol. Use this information to calculate (i) the density of charge
carriers and (ii) the Fermi energy of sodium.
What is internal resistance of source bettery
What singma y and sigma z matrix
Explain variational method in theory.
What is effect of incident wavelength on fringe width.
A particle moves in the xy-plane with a velocity vector given by v =3i^+3tj^, where v is in m/s and time t is in s. At t=0 the particle is at the origin. Find the x- and y-coordinates (in m) of the particle at t=2 s.
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#331389 on Nov 2022
#331389 on Nov 2022