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Explain quantitatively how an object can follow circular motion whilst on a ramp with no friction in the radial direction.

The important condition for circular motion is that there must be a constant force acting perpendicular to the motion of the object. In this case there will be a contact force acting on the object from the r...
JR
Answered by James R. • Physics tutor
2744 Views

Sine Rule

The sine rule is a very powerful tool used in mathematics to calculate unknown sides and angles of triangles when we only know some of the information. For example if we have a triangle and we know two angle...
HG
Answered by Hugo G. • Maths tutor
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Assess the view that the growth of fundamentalism is a reaction to globalisation.

Fundamentalists seem to go against the trend of secularisation, rejecting modern interpretations of faiths and seeking to return to the ‘literal truths’ of their religion. It is argued by some theorists that...
LH
Answered by Laura H. • Sociology tutor
20575 Views

I can't figure out this question to do with VAT. VAT is charged at 20%. A TV is for sale for £650 inc. VAT in Good Electronics and the same TV is for sale £495 exc. VAT in Wright's Electricals, where is it cheaper?

I can't figure out this question to do with VAT. VAT is charged at 20%. A TV is for sale for £650 inc. VAT in Good Electronics and the same TV is for sale £495 exc. VAT in Wright's Electricals, where is it c...
WH
Answered by William H. • Maths tutor
5898 Views

I'm supposed to calculate the differential of f(x)= sin(x)*ln(x)*(x-4)^2 using the product rule. I know what the product rule is but I can't split this into two bits that are easy to differentiate. How do I do it?

You say you are familiar with the product rule i.e. f(x)=u(x)v(x) f'(x)= u(x)v'(x)+v(x)u'(x) (Equation 1) OK so why don't we try applying that here let's try splitting the function in this problem down into ...
WH
Answered by William H. • Maths tutor
4683 Views