Materials for rain-proof coats and tents owe their water-...
Materials for rain-proof coats and tents owe their water-proof properties to
surface tension
viscosity
specific gravity
elasticity
Correct answer is A
No explanation has been provided for this answer.
The main reason why rice cooks faster in a pressure cooker than in cooking pot is that ...
Which of the following is the correct definition of 'half-life'? ...
Calculate the rate at which energy is used up in the circuit illustrated by the diagram ...
All the heat generated by a current of 2A passing through a resistor of 6Ω for 2.5s is used to...