Search our library of homework questions

Top answers

All subjects

All levels

What is the objection from the problem of evil to the existence of God?

The problem of evil attacks the principle that God is an omniscient, benevolent and omnipotent being. If God were omniscient, he would know that evil exists and he would know how to prevent it. A frequent...

Answered by Charlotte G. • Philosophy tutor

2178 Views

Write cosx - 3sinx in the form Rcos(x + a)

Rcos(x + a) = Rcosxcosa - Rsinxsina
By comparing cosx - 3sinx to the new expression, we can see that:
Rsina = 3 and Rcosa = 1
If we square both and add them, we can see R = √(1²

Answered by Odin G. • Maths tutor

8829 Views

Samuel had 3 piles of coins, I, II and III. Altogether there was 72p. Pile II had twice as much as pile I. Pile III had three times as much as pile II. How much money was in Pile III?

First let coins in pile I equal x. Then we the question tells us II has twice pile A so we can now write this as 2x. Finally, we can write pile III as 6x - reason is that III has three times pile II...

Answered by Syed R. • Maths tutor

2748 Views

What is Ionisation Energy and the three factors that affect it? 2)State and explain the general trend in first ionisation energies for the Period 3 elements.

Ionisation energy is the energy required to remove 1 mole of electrons from each atom in 1 mole of gaseous atoms to form 1 mole of gaseous ions.For...

Answered by Kadambari R. • Chemistry tutor

12532 Views

How do I explain what effect an increase in government spending may have on unemployment and inflation in an economy?

The best way to answer this question would be by using the help of a Keyenesian diagram. After drawing the standard long-run supply curve and aggregate demand curves we can show what effect an increase in...

Answered by Abid R. • Economics tutor

2102 Views