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When should I use imparfait and passé composé?

Passé composé (AVOIR ou ETRE + participe passé) is used for ponctuel actions in the past which have been ended. Ce matin, j’ai mangé une tartine de pain. On the other hand, imparfait is used for descriptions...
CM
Answered by Charlotte M. • French tutor
3290 Views

How do I make a free body diagram ?

To create a free body diagram, first you need to identify a body you are intrested in. Do you have it ? Great! Now lets draw this body isolated. I mean you don't want to include any object in its surroding i...
MM
Answered by Mateusz M. • Physics tutor
2184 Views

Mutations can occur in DNA. Describe what effect a mutation can have on the function of an enzyme.

A mutation is a change in the DNA base sequence. This causes a change in the amino acid that is synthesised, and this could change the shape of the active site on an enzyme. The shape of the active site may ...
MS
Answered by Mahdia S. • Biology tutor
36644 Views

Given that y=x/(2x+5) find dy/dx.

Using the quotient rule: Let u=x and v=2x+5 then du/dx= 1 and dv/dx=2 Hence dy/dx=[(2x+5)x1- (2x)]/(2x+5) 2 =5/(2x+5) 2
SB
Answered by Shayna B. • Maths tutor
4216 Views

How is information contained in the nuclear DNA of a cell converted into proteins? Outline the role of each molecule and enzyme involved in the process.

DNA is a double-stranded nucleic acid that consists of four different bases (A, T, C, G) which make up the 'language' of the genome. Sets of three bases on the coding strand of DNA, known as a triplet codon,...
TL
Answered by Timothy L. • Biology tutor
2841 Views