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In a science experiment a substance is decaying exponentially. Its mass, M grams, at time t minutes is given by M= 300e^-0. 5t

The initial mass is found by putting t=0 into the given equation, so the initial mass is 300g. When the mass has decreased to half its value, M=150g. This gives us 150=300e^-0.05t, so e^-0.05t=1/2. Natura...

Answered by Theo T. • Maths tutor

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Analyze how the outcome of the First World War impacted the rise to power of two 20th century dictators.

Hitler:Treaty of Versailles:“Stab in the back theory”“diktat”Revision of Versailles Germany as a Great Power would be restoredStreaseman’s successes were not visible:at Locarnoaccepted the Western borders...

Answered by Lili L. • History tutor

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« L’euthanasie devrait être légalisé » Partagez-vous ce point de vue ?

La question de l’euthanasie cristallise des tensions depuis toujours. On n’a qu’à penser aux manifestations ardentes à Londres en mai 2018 pour saisir l’ampleur de la polémique suscitée par ce problème. T...

Answered by • French tutor

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1.1 Write out the base sequence of the complimentary strand of DNA for the following DNA sequence (ATGGCTACG) (2 marks). 1.2 How many amino acids does the DNA sequence code for? (1 mark)

1.1 Answer: TACCGATGC (T is complimentary to A and C is complimentary to G)1.2 Answer: 3 amino acids (3 DNA bases code for 1 amino acid and there are 9 DNA bases in the sequence (9/3=3))

Answered by Siobhan L. • Biology tutor

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Could a state legitimately deny its citizens the right to emigrate?

Yes, the state could be legitimate in denying its citizens the right to emigrate. Requiring citizens to stay in the country is one way of ensuring their political obligation to support the continued exist...

Answered by • Politics tutor

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