Question
How much mechanical work must be done to completely
melt 1 gram of ice at 0°C?Solution
When water at 0 degree Celsius freezes, each gram of water gives off 80 calories. The temperature of the water stays at 0 degree C until every drop has frozen. When ice at 0 degree Celsius melts, it absorbs an equal amount of heat-80 calories for each gram of ice—and its temperature remains unchanged until it has completely melted.
If the average of two numbers is 13 and the square root of their product is 12, then the difference between the numbers is:
What is the smallest natural number that should be added to 1030 so that the square root of the sum is a natural number?
A horse is tethered to a peg fixed at one corner of a rectangular grass field measuring 45 metres in length and 25 metre...
Determine the value of (0.88)2Â
Find the square root of 0.0324.
Two times a number, added to the square of that number, gives 3. What could be the possible answer for this number?
Find the Square root of √14641
Calculate the lateral surface area of a right circular cone having a radius of 5 cm and a height of 12 cm.
Find the value of ∛ 474552
Solve the following :-
