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How do you split a fraction into partial fractions?

In the exam you will be given a fraction with polynomial numerator and denominator, the denominator will either be factored or factorable. Firstly, you need to factorize the denominator. Then to write as par...
CW
Answered by Cameron W. • Maths tutor
12028 Views

Calculate the amount (in moles) of iron 3 nitrate in a 2.16g sample.

Formula of Iron 3 Nitrate is Fe(NO3)3. Moles = mass/Mr. Already given mass = 2.16g Want to work out amount in moles. Need to calculate Mr of Iron 3 nitrate, put into equation with mass -> find moles. Usin...
KW
8294 Views

You are asked to find the Young modulus for a metal using a sample of wire. *(a) Describe the apparatus you would use, the measurements you would take and explain how you would use them to determine the Young modulus for the metal.

Apparatus: The wire is secured by a clamp and clamp stand A hanging mass is attached to the end of it, where the mass hung can be changed A Vernier scale or ruler may be attached to the apparatus to measure ...
RH
Answered by Robert H. • Physics tutor
8473 Views

What exactly is determinism?

Determinism is the opposite to having free will over your behaviour, so you have no free will/ no control over your behaviour, and your behaviour is therefore caused by other external factors. There are two ...
AC
3881 Views

Express asin(x) + bcos(x) in the form Rsin(x+c), where c is a non-zero constant.

The trick to solving this is to use the trig identity sin(a+b) = sin(a)cos(b) + sin(b)cos(a) From the identity above, we can write rewrite Rsin(x+c) as follows: Rsin(x+c) = R[sin(x)cos(c) + sin(c)cos(x)] Exp...
LH
Answered by Louis H. • Maths tutor
8017 Views