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The drag on a submarine moving below from free surface (surface wave are not important) is to be determined by a test on a 1/15 scale model in a water tunnel. The velocity of the prototype is sea water (ρ = 1015 kg/m3, ν = 1.4×10-6 m2/s) is 2 m/s. The test is done in pure water at 20°C.
Determine the speed of the water in the water channel for dynamic similitude and the ratio of the drag force on the model to the drag force on the prototype.
The maximum wave force on a 1/36 model sea wall was found to be 80 N. For a corresponding wave in the full-scale wall, what full-scale force would you expect? Assume fresh water is used in the model study. Assume T = 10°C for both model and prototype water.
a) Spin motion of electrons b) On the basis of spin and orbital motion of electrons c) These are feebly attracted in an external magnetic field i.e., have a tendency to go fr
ELASTIC COLLISION: "The collision in which both linear momentum and K.E are conserved is said to be elastic collision". OR "In the ideal case when no K
Q Calculate the longest wavelength that can be analysed by a rock salt crystal of spacing d = 2.82 Ao in the first order. Data: d = 2.82 Å = 2.82 × 10-10 m; n = 1 ; λmax = ?
In a plot of photoelectric current versus anode potential, how does 1. The saturation current varies with anode potential for incident radiations of dissimilar frequencies but s
Q. Write any three medical applications of laser. Medical applications (i) In medicine micro surgery has befall possible due to narrow angular spread of the laser beam.
what is a compound pendulum.in detail
Rules to verify how many significant numbers has in a calculated quantity: 1. All nonzero digits are significant. As like 457 cm has three significant values; 0.25 g has two si
What is the ratio of mass of an electron to the mass of a proton: (1) 1 : 2 (2) 1 : 1 (3) 1 : 1837 (4) 1 : 3 Ans: 1: 1837
After the parallel algorithm has been written as well as executed performance of both algorithms is one of other main concerns. In order to examine performance of algorithms there
when an object is dropped, what is its acceleration at the moment of release? Explain with reasoning.
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