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Q. Illustrate what does hull speed mean?
Answer:-
Hull speed- It is the theoretical limit of a sail craft's speed. It is able to be approximated by the following formula
1.34 * SQRT (LWL), where LWL is the length of the waterline in feet.
As a little vessel approaches its hull speed the hull begins to climb its own bow wave. The earlier the vessel tries to go the further difficult climbing the bow wave becomes. Ultimately should the hull type permit it the hull will begin to hydroplane skimming across the water.
The boom DF and the column DE have a uniform weight of P55 N/m and the chain and load at F is P56 kN. Determine the Shear Force in kN rounded to 1 DP and the Bending Moment in kN.
Q. Why X-rays are not used in microscopes? 1) The wavelength of X-rays is slighter than that of the visible light. 2) X-rays can't be focussed as visible radiations are foc
Capacitance: If we increase the voltage between the plates, the charge increases, but the ratio of charge to voltage remains the same. This ratio gives the capacitance (C) of
1 Ampere: 1 ampere current is supposed to be flowing in a conductor if one coulomb of charge flows across section of the wire in one second.
A substance has constant heat capacity C P = 3.5R and its equation of state is given by: P (V-cRT) = RT where c = 5 * 10 -7 m 3 /J. This substance is isentropically compre
Electrostatic field is caused by stationary charge, Induced field is caused by time-varying magnetic field
Cathode rays are : (1)Protons (2)Electrons (3)Neutrons (4)alfa -particles Ans; (2)Electrons
Inertia in a pile of books Stack up a pile of books. Grasp hold of the single at the bottom of the pile and give it a quick jerk. Can you delete it without upsetting the whole
Correspondence principle (N. Bohr) The principle that when a new, more general theory is placed forth, it has to decrease to the more specialized (and usually simpler) theory
Transition temperature It is temperature (based on the substance involved) below which a superconducting substance conducts electricity with zero resistance; as a result, the t
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