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Explain how increased blood flow to an athletes muscles helps them to run

"Explain" - so must give reasons why something is happening - Increased blood flow - what does this mean? Means more blood reaches the muscles -What does the blood carry (...

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In terms of structure and bonding explain why the boiling point of magnesium is much higher than that of bromine?

Bromine is molecular, existing as Br2 molecules, wheras magnesium is metallic and therefore exists in a large macromolecular structure. In bromine there are strong INTERmolecular covalent bonds, but only ...

Answered by Edwina B. • Chemistry tutor

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"Why is Mathematics important, I wont use any of it when I start work?"

This is a common question asked by young students and adults, which demotivates them to study and prevents passion from being the driving force during the tougher chapters. Mathematics is used in every in...

Answered by Ashish T. • Maths tutor

3416 Views

What was the cause of the French Revolution?

It's possible to outline an interplay between various different causes in leading to the start of the French Revolution. One could highlight issues such as the ineffectivness of Louis XVI as a ruler, the ...

Answered by Milly W. • History tutor

2386 Views

Given that x = 1/2 is a root of the equation 2x^3 – 9x^2 + kx – 13 = 0, find the value of k and the other roots of the equation.

Firstly, we note that a 'root' is simply a solution of the equation (at least, in this case). Let's start from what we've been told: x = 1/2 is a root of the equation. Since it's a solution, let's sub it ...

Answered by Eugene L. • Maths tutor

5510 Views