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A particle of mass 5kg is moving in circular motion with a time period of 2 seconds. The radius of the circle is 10m. What is the centripetal force on the particle

The angular velocity is equal to 2 times pi divided by the time period. So we have an angular velocity of pi radians per second. The centripetal force is given by mass times the radius times the angular v...

Answered by • Physics tutor

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At each point P of a curve for which x > 0 the tangent cuts the y-axis at T, and N is the foot of the perpendicular from P to the y-axis. If T is always 1 unit below N and the curve passes through the point (1,0), find the Cartesian equation of the curve.

When faced with a problem like this, it is always a good idea to draw a rough sketch of what might be going on. With the help of a diagram, we notice that PNT is a right angled triangle w...

Answered by Siddharth P. • Maths tutor

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Evaluate the usefulness a knowledge of perfect competition theory in analysing the behaviour of firms. [15]

Perfect competition is the most competitive market structure with many firms holding a small market share and no barriers to entry. There are no pure real-world examples ...

Answered by • Economics tutor

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Describe the three different types of point mutation, and explain for each what the effect on the final gene product is likely to be

Base insertion/addition. This is when a base pair is added to a sequence - for example AGTCGTAGC could become AGTCGATAGC. In this situation, a frame shift occurs, and every c...

Answered by Rachel H. • Biology tutor

4465 Views

Which French politicans support the lowering of the voting age?

Currently, you have to be aged 18 or above to be able to vote in France. Dominique Bertinotti (the Family Minister) suggests having a 'pré-majorité' status where those aged 16-18 can vote in local electio...

Answered by • French tutor

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