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What caused the outbreak of World War Two in 1939?

Historians acknowledge many factors causing the outbreak of war in 1939, however it is a culmination of these factors that must be seen as the ultimate cause in triggering the beginning of World War Two. It ...
AT
Answered by Amie T. • History tutor
4186 Views

Explain why the first ionisation energy of Strontium is less than the first ionisation energy of Calcium

Both of these elements are part of the 2nd group of elements on the periodic table. ie in first ionisation, their electron configuration changes from nS2 -> nS1. Strontium is a much larger element, so the...
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Answered by Olivia H. • Chemistry tutor
11123 Views

What is the sliding filament mechanism?

The sliding filament mechanism is a model used to show the way in which muscles contract. It involved 3 components - Myosin, Actin and Tropomyosin. Myosin has a head like projection to which an ADP molecule ...
JC
Answered by Joseph C. • Biology tutor
13033 Views

Translate the next sentence, 'Solías trabajar mucho más que él'.

The answer is, 'You used to work much harder than he did'.
LA
Answered by Lucia A. • Spanish tutor
3005 Views

Integrate xcos(x)

This problem will be solved using the integration by parts method, taking the integrated function as udv which answer is uv-(integration of vdu) : u=x and dv=cos(x) so, du=dx and v=sin(x). We have, xsin(x)-i...
LA
Answered by Lucia A. • Maths tutor
4221 Views