Top answers

How do I make an effective analysis of a text?

When analysing a text, take a close first read through to ensure you understand what is being said. Don't make any notes as you read, and look up any terms you don't understand (in a dictionary or online). W...
CB
6666 Views

What is the gradient of y = xcos(x) at x=0?

First we want to calculate the derivative of y. To do this we use the product rule:If we rewrite y as y = uv, then dy/dx = v du/dx + u dv/dx.Here, we have u = x and v = cos(x).That means du/dx = 1 and dv/dx ...
FF
Answered by Fraser F. • Maths tutor
5008 Views

Describe the cardiac cycle

The cardiac cycle consists of two phases, diastole and systole. Diastole is when the heart is relaxing, allowing blood to flow into the chambers from the vena cava on the right side and the pulmonary vein on...
AG
Answered by Alex G. • Biology tutor
19724 Views

A compound, HOCH2CH2CH2CH2COCl, reacts with itself to give a new compound. Give the IUPAC name for the starting compound, draw the mechanism for the formation of the new compound and give the prominant feature of the IR spectrum of the new compound.

This compound is highly unstable, and it's IUPAC name would be 5-hydroxypentyl chloride . The "hydroxy" part is from the OH alcohol group, "pent" from the number of carbons in the chain, ...
DH
Answered by David H. • Chemistry tutor
8335 Views

The difference between the verbs 'ser' and 'estar'?

As you know, both of the verbs mean 'to be', which is quite confusing! However, in Spanish unlike English, for different contexts and meanings, we use a different version of 'to be.' Ser is a verb which impl...
HP
Answered by Henry P. • Spanish tutor
3183 Views