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Latent heat is the heat released or absorbed by a body or a thermodynamic system during a process that occurs without a change in temperature. A typical example is a change of state of matter, meaning a phase transition such as the melting of ice or the boiling of water. So water vapor which is the end product of evaporated water has latent heat.
Find the last digit of (12123 – 1).
What must be added to (7/20) to make it (3/4)?
Find the number of zeros at the end of 78!.
Find the sum of all two-digit numbers that are exactly divisible by 6.
The ratio between two numbers is 2:3 and the sum of their squares is 2197. The numbers are:
Sum of seven consecutive natural numbers is always divisible by which of the following number?
Two numbers add up to 18, and the sum of their reciprocals is 5/2. Calculate the square of the product of the two numbers.