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A iron rod on the surface of the beach and other iron rod into the sea water which metal corrodes easily?Ans) An iron rod on the surface of teh seawater because in sea it contains more salts like Na,k,Ca......these salts directly react with the metal surfaces automatically it corrodes very fastly but where as in beach water it doesn''t contain higher amount of these ions so that''s why it f corrodes very late as compared to the sea water
A train moving with a velocity of 51 m/s east undergoes an acceleration of -2.3 m/s 2 as it approaches a town. What is the velocity of the train 5.2 s after it has begun to decele
kilogram; kg: The basic SI unit of mass, that only SI unit which still maintained by a physical artifact: a platinum-iridium bar kept in the International Bureau of Weights an
a) The molar mass of air is 28.97 kg/kmol and the universal gas constant is 8.314 kJ/(kmolK). Show by calculation that the particular gas constant of air is around 0.287 kJ/(kgK)
A pendulum which is suspended from the ceiling of a railroad car is observed to hang at an angle of 10 degrees to the left of vertical. Which of the following answers could de
An electron has momentum that is 90 % larger than its classical momentum. Find speed of electron. Classical momentum Relativistic momentum Here m is effective mass Given, Spe
Shockley, Brattain and Bardeen won a Nobel Prize for what small invention? Ans: Shockley, Bardeen and Brattain won a Nobel Prize for small invention of transistor.
Explain natural physics concerned about? Solution: Natural physics is the branch of physics which deals the physics related to nature.For example-physics related to sunlight,re
Electrical equipment in an office takes a current of 13A from a 240V supply. Estimate the cost per week of electricity if the equipment is used for 30 hours every week and 1kW
A motor has an output of 4.8kW, an efficiency of 80% and a power factor of 0.625 lagging when operated from a 240V, 50Hz supply. It is needed to improve the power factor to 0.9
An atom is said to be polarized if it possesses and effective dipole moment, that is, if there is a separation between the centres of negative and positive charge distribution. It
IRON ROD CORRODES ON THE SURFACE OF BEACH BECAUSE THERE WILL BE MUCH OXYGEN AVAILABLE TO IT SO THAT IT MAY CHANGE TO Fe2O3 .WHICH WE CALL RUSTING
Iron rod corrodes easily in sea water because sea water mainly contain NaCl.
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