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A clamp and stand should be used to hold the spring in place. Ensure its parallel to the stand using a ruler, this reduces the effect of random parralax error when measuring extension.Masses should be att...

Rutherford performs the alpha particle scattering experiment. Alpha particles incident on a gold foil in a vaccum are scattered by a range of angles, due to the electrostatic repulsion between the positiv...

Ser and Estar are vital verbs for Spanish, so it is key to get them nailed and remember the conjugations. SER goes as SOY, ERES, ES, SOMOS, SOIS y SON. ESTAR is conjugated like this: ESTOY, ESTÁS, ESTÁ, E...

A population of bacteria will have lots of variation in characteristics due to mutations in the DNA that each bacteria contains. Some of those mutations may allow a bacteria to be resistant to an antibiot...

Step-by-step guide to analysing unseen poetry:Read the poem twice to identify a subject matter - What is the poem talking about? What is the poet trying to say about that thing?Discuss the poem's form and...