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What is the difference between evaporation and boiling?

Both evaporation and boiling are a process where a liquid change state into a gas. Boiling happens to all of a liquid at once and occurs only when a liquid is heated to one specific temperature, it's boiling...
LD
Answered by Louis D. • Physics tutor
53252 Views

What are the characteristics for perfect competition firms and when do they make profit?

The chracteristics of perfect competition are: many firms, freedom of entry and exit, all firms produce identical or homogenous products, all firms are price takers(have no influence over the price) and have...
DC
Answered by Diana C. • Economics tutor
5801 Views

solve for x: (x-2)(x+3)=2(2x+11)

expand the brackets to get x 2 -2x+3x-6=4x+22 bring all the terms to one side x 2 -2x+3x-6-4x-22=0 (remember:if you do something to one side, do the same thing to the other! e.g. -4x on both side) gather all...
JR
Answered by Jack R. • Maths tutor
6043 Views

How would you define the concept of Parliamentary Sovereignty?

The most common explanation of the idea of sovereignty comes from Dicey, who saw sovereignty as the idea that Parliament can make or unmake any law it chooses, with unlimited discretion. This means that futu...
IC
Answered by Iona C. • Politics tutor
2789 Views

Solve the inequality. x^2 + 2x -15 > 0

To solve the inequality, it must first be factorised. This could be done by the ‘complete the square’ method. However in this example it is more efficient to find a pair of numbers that multiply to give the ...
EF
Answered by Elizabeth F. • Maths tutor
13736 Views