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How does a glacier erode a landscape to form a U-Shaped valley?

A u-shaped valley starts life at high altitude near the peaks of a mountain range. As snow falls, it gradually compacts due to pressure and turns into ice. As this ice gets heavier and heavier, it becomes a ...
CM
Answered by Cameron M. • Geography tutor
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If a 60kg girl jumps out of a helicoptor, draw diagrams to show the forces (with values) acting on her when a) she is in freefall, b) she is accelerating at half of g (g = 10 m/s^2), c) she is travelling at a constant speed?

a) 600N arrow down for weight, no air resistance arrow, acceleration = 10m/s^2 b) 600N arrow down, 300N arrow up for air resistance, acceleration = 5m/s^2 (Using F = ma) c) 600N arrows up and down (forces ba...
EJ
Answered by Ella J. • Physics tutor
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Differentiate and factorise y = x^2(3x + 1)

Product rule: dy/dx = uv' + u'v dy/dx = 2x(3x + 1) + x^2(3) dy/dx = 2x(3x + 1) +3x^2 dy/dx = 6x^2 + 2x + 3x^2 dy/dx = 9x^2 + 2x dy/dx = x(9x + 2)
EJ
Answered by Ella J. • Maths tutor
3867 Views

What makes a good essay introduction?

A strong introduction is vital for any good essay, as it lends structure to both the reader but also yourself. In order to write a convincing essay you need to outline your points clearly and briefly in the ...
CS
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Critically evaluate the outcomes of globalisation

One outcome of globalisation is the advantages towards the environment. Advantages on the environment include; the efficient allocation of resources in order to prevent the wastage of valuable resources, imp...
RF
Answered by Rachel F. • Geography tutor
6888 Views