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When a force is applied to a spring, the spring extends by 12cm. The spring has a spring constant of 25 N/m. Calculate the force applied to the string in N.

The equation needed in this scenario is: Force Applied (F) = Spring Constant (k) x Extension (x). This will most likely be given to the student on the data sheet for most exam boards. Firstly, you must conve...
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Answered by Matthew G. • Physics tutor
14227 Views

Integrate x((x^2)+2) dx

The first step is to multiply out the brackets so the function is in a form that can be integrated. X x X 2 = X 3 then X x 2 is simply 2X. So we are left with X 3 + 2X. Both parts of this function can be int...
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Answered by Benjamin H. • Maths tutor
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There are 31 days in January. January 21st 2015 was a Wednesday. What day of the week was February 8th 2015?

First we need to know how many days are still remaining before the end of January. In this case it would be 10 since 31-21=10. We know that 8th of February is the 8th day of the month, so in total between Ja...
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Answered by Roman D. • Maths tutor
8248 Views

How should I structure the essay question in my exam?

You need to have done some research on different topics (they will be in your text book) relating to a French-speaking country. In your answer you must include some facts that you have learned, whilst keepin...
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Answered by Beatriz L. • French tutor
2607 Views

Find the equation of the straight line joining points (-1, -4) and (2, 5)

Draw sketch of line 2. Find gradient using m=(y 2 - y 1 )/(x 2 - x 1 )= 5--4/2--1=9-3=3 3. Choose one of the points and call it (a,b). I'll pick (2,5) because there's no negaitves. 4. Sub into equation y-b=m...
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Answered by Ben M. • Maths tutor
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