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Explain the similarities and differences between act utilitarians and rule utilitarianism both seek to maximise happiness – but differ over the best way to do this.

Both rule utilitarianism and act utilitarianism adhere to the utility principle, but differ on the best wayto achieve its aims. They both seek to judge action ‘according to the tendency which it appears t...

Answered by Patrick M. • Philosophy tutor

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A ball of mass 1kg is rolled down a hill of height 10m. At the bottom it collides with another ball of mass 5kg. What speed does the second ball move away with? You can assume the collision between the balls is elastic.

First, we look at the energy of the smaller ball.We know Gravitational potential energy = mgh (m=mass g=9.81 h=height)So we can plug our numbers from the question into the equation to get:GPE=mgh=1x9.81x1...

Answered by Tim H. • Physics tutor

2255 Views

How can the rate of a reaction involving gaseous molecules be increased?

If the pressure of a reacting gas is increased:the reactant particles are closer togetherthe frequency of collisions between reactant particles increasestherefore the rate of reaction inc...

Answered by Louise L. • Chemistry tutor

1905 Views

What is (18)^1/2 -(8)^1/2 simplified?

In order to answer this we will break down the two surds into their factors. So we know that 18 is 2 multiplied by 9 and so (18)^1/2=(92)^1/2 which cane be broken down into (9)^1/2(2)^1/2 .We kno...

Answered by Hannah M. • Maths tutor

2679 Views