First Published: May 12, 2011 | Last Updated:August 4, 2020
can u plz explain q 12 sir?
Acid rain is capable of damaging the buildings and historic monuments which are made up of rocks such as limestone and marble. This is because these rocks contain a large amount of Calcium Carbonate, which reacts with the Sulfuric Acid to create Gypsum. Gypsum flakes off easily. This is shown in the following reaction:
CaCO3 (s) + H2SO4 (aq) →CaSO4 (aq) + CO2 (g) + H2O (l)
sir in q 9 why the ship went to tuticorien while there is no passing of ships from bay of mannar…???
Thank U sir..Please add more science related questions sir
sir can you please explain the calculation s for q4 and q6
The initial velocity is u=0, acceleration a= 9.8 m²/s, time t=5 s
Last velocity= Initial Velocity + (Acceleration x time)
v = u+ at
v=0 + 9.8×5
= 49 m/s
When dealing with audible frequencies, the human ear cannot distinguish an echo from the original sound if the delay is less than 1/10 of a second. Thus, since the velocity of sound is approximately 343 m/s at a normal room temperature of about 20°C, the reflecting object must be more than 17.15 m from the sound source at this temperature for an echo to be heard by a person at the source.
whr is ennor situated?
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sir can you give us a summary of nagaya protocol?
sir can you give us some notes of nagaya protocol?