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Why does an α particle cause more ionisation than a β particle if they have the same kinetic energy?

An alpha particle has a much larger volume than a β particle, so when passing by an atom it is more likely to collide with an electron and knock it out of the atom causing the atom to be ionised (meaning it ...
Answered by • Physics tutor
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What is the maximum resolution for a standard optical microscope?

200nm
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Answered by Sakina L. • Biology tutor
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Describe the Multi-Store Model

Atkinson and Shiffrin's Multi Store Model (1968) describes how information is encoded by passing through 3 memory 'stores' . Visual and audible information enters the Sensory Store but is only stored for les...
Answered by • Psychology tutor
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How do organelles work together to produce and release proteins from a cell

The nucleus contains all the DNA of a cell. RNA polymerase converts the DNA of the gene corresponding to the desired protein into RNA. The RNA is transported to the rough ER where it is translated into an am...
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Answered by Benjamin H. • Biology tutor
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During sampling, discuss the principles and strategies that should be employed in the collection of representative samples.

First it is important to define a representative sample. A representative sample should have a mean very close to the entire population being sampled, i.e. you are able to account for the natural variation o...
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Answered by Rowan S. • Biology tutor
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