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Ethical absolutism holds that moral commands are true at all times. This means that they're true in all cultures and situations. Under this view, actions such as murder and stealing are seen as objectivel...

A reaction will occur if two reactants collide with each other with enough energy to overcome the 'activation energy'. The activation energy is the minimum amount of energy the reactant particles need in ...

Validity is a complex issue to understand as it is closely linked with reliability.

Ultimately, it can be defined as the extent to which something measures what it is supposed to. In simple terms, ...

First realize if its length is now l/3 but its volume is constant its cross sectional area is 3a. Substitute those into the equation for resistance R=p(l/a) and you get (1/9)(p(l/a))= R/9

The strong force between two nucleons is initially repulsive. However at a distance of around 1 fm the force crosses over and becomes repulsive. The strong nuclear force is only seen to act over short dis...