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Define Frozen Solid (Moscow Phys-Tech)?
Evaluation how long it will take for a small pond of average depth D=0.5 m to freeze entirely in a very cold winter, when the temperature is forever below the freezing point of water. Take the thermal conductivity of ice to be k=2.2 w/m k, the latent heat of fusion q=3.4.105 J/kg, and the density p=0.9.103kg/m3. Acquire the outside temperature to be a constant T0=263K.
Calculate the potential energy of a rock with a mass of 55 kg while sitting on a cliff that is 27 m high.
Q. A light of wavelength 6000 0 A falls normally on a thin air film, 6 dark fringes are seen between two points. Compute the thickness of the film. 2μt = nλ Thickness of t
The airplane shown in the figure is to achieve "weightlessness" for a short period of time by flying along a curved path such that it's acceleration components in x direction a x
Thevenin's Theorem can be stated as follows: Any two terminal network having a number of e.m.f. sources and resistances can be changed by equivalent simple series circuit of singl
Q. What are the characteristics of laser beam? Characteristics of laser The laser beam (a) is monochromatic. (b) is coherent with the waves all exactly in phase with o
Q. How greatly does sea salt weigh per cubic foot? Answer:- Sodium chloride NaCl weighs 72 lb/ft 3 .
A parallel plate capacitor is made from 25 plates, each 70mmby 120mm interleaved with mica of relative permittivity 5. If the capacitance of the capacitor is 3000pF verify the
if the universal gravitational force depends on the product of the masses and depends on the distance between the masses ,find an expression for the universal force, and the unit f
The collision between a photon and a free electron was first explained by which of the following scientists? a) Einstein b) Heisenberg c) Compton d) Bohr An
what is radiant energy?.
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