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Centripetal Force = (mv^2)/r 

The centripetal force must always act towards the centre of the circle in which the satellite is travelling. Therefore it is a attractive force from the Earth and henc...

6x - 5 > 4x + 13        (Take away 4x from each side) 

2x - 5 > 13                (Add 5 to each side) 

2x > 18                     (Divide both sides by 2)

x > 9 

Newton's first law of motion states 'an object will only experience acceleration if a resultant force is acting on it'. This means that only unbalanced forces will cause a change in the speed of the objec...

new amount = old amount * (1 + interest)^(number of times interest has occured)

new amount = 1.50 * (1 + 0.03)^5 = £1.74 (rounded to 2 decimal places)

Firstly, it's important to have a bank of topic-specific vocab, which would demonstrate a wider and higher-register vocabulary level. During lessons, keep vocab lists of new words and arrange them by topi...