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How do you retain and understand information when you are reading?

First, it's important that you select the correct size of text for a reading session. Reading an entire textbook in one long session means that you will find it extremely difficult to retain any detailed ...

PC
Answered by Pippin C. History tutor
2347 Views

What is a neutrino?

A neutrino is a fundamental particle of matter, meaning that it has no substructure (it can't be broken down further into components). It has a very low mass, so the gravitational force exerted on it and ...

PC
Answered by Patrick C. Physics tutor
8435 Views

What is a vector?

A quantity may be a scalar (just a magnitude, just a number) or a vector, with magnitude and direction. For example, speed is a measure of how fast something is going, but velocity is a measure of how fas...

PC
Answered by Patrick C. Physics tutor
3220 Views

How do I differentiate an algebraic expression? (e.g. y=3x^4 - 8x^3 - 3) [the ^ represents x being raised to a power]

y=3x4-8x3-3
Let's say we want to calculate dy/dx. For a term Axn, the differential with respect to x is Anxn-1. For a constant value, we can say t...

PC
Answered by Patrick C. Maths tutor
3674 Views

Elemental analysis of a carbohydrate X showed the sample contained 48.7 % carbon and 8.1 % hydrogen by mass. Find the empirical formula of X.

These sorts of questions can look difficult, but if you learn the steps needed to solve them then they are all very similar.Step 1: Since we are told that X is a carbohydrate, we know tha...

JB
Answered by Jack B. Chemistry tutor
1912 Views

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