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Distance covered upstream in 30/4 minutes = 1/4 Km Distance covered upstream in 1 hour = 1/4× 4/30× 60 = 2 km/hr Distance covered downstream in 5/2 minutes = 1/4 km Distance covered downstream in 1 hour = 1/4 × 2/5× 60 = 6 km/hr Speed of the man in still water = 1/2(2 + 6) = 4 km/hr
Which of the following alkali metals has the highest specific heat?
_____ is the movement of chemicals in the upper layers of soil into lower layers or into groundwater by being dissolved in water.
Which gas is produced due to incomplete combustion of fuel?
Turquoise is an ore/mineral of:
What is the equilibrium distance for Hydrogen atoms?
To prevent heart problems, blood of a normal healthy person should have