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The rutherford gold foil experiment was an experiment the was done to determine the structure of the atom. In it a beam of alpha particles was shot at an extremely thin piece of gold foil and a detector w...

Convection is a heat transfer process that occurs in fluids. During convection, hot, less dense fluids rise to the top of a system, whil...

Although these two words can be used interchangably they are very very different. Its easier to explain if you break down their equatoins.

Speed = distance / time
V...

We need to show that car A is safer than car B and this is done by showing that the force is greater on car B than car A.

Start by finding the force on car A, total mass 1580kg:

The first question comes from the realisation that the power rating, "9W" represents 9 joules being supplied every second and so can be written as 9J/s and so in 5 minutes (o...