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Is the British Prime Minister become Presidential?

While critics seem to be regularly telling us that we are moving towards a more Americanized system characterized by a growth in spatial leadership (the presentation of the party leader as the 'relatable out...
LR
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What is escape velocity?

This is the minimum initial velocity required to move from a point to infinity in a gravitational field. Infinity is defined to have a potential, V of zero; this is the point where the gravitational field ha...
AP
Answered by Ashkan P. • Physics tutor
8566 Views

Outline the features of seismic waves.

Seismic waves are shock waves released by the rupture of rock duing an Earhquake. Seismic waves radiate from the focus of the earthquake and travel through rocks. Primary waves (P-waves) are compressional wa...
BD
Answered by Bethan D. • Geography tutor
28640 Views

What is endosymbiosis and how does it relate to mitochondria?

Endosymbiosis is where two organisms live together, one inside the other: endo=in, sym=together and biosis=living. It is believed that mitochondria originated as eubacteria that were intracellular parasites ...
AH
Answered by Aidan H. • Biology tutor
5940 Views

Describe the formation of hotspots and explain their relationship to plate movement.

Radioactive deacay in the Earth's core creates extremely high temperatures which heat the lower mantle. When radioactive decay is concentrated, local thermal currents are generated in the lower mantle. Plume...
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Answered by Bethan D. • Geography tutor
27517 Views