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In terms of the photoelectric effect, what is the work function of a material?

It is the work done (or energy) required to remove an electron from its surface. This information is used a lot in Einstein's Nobel prize winning Photoelectric effect experiment and theory.

Answered by • Physics tutor

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What is a common harmonic device used in Classical Orchestral music?

Clear harmonic structure is used. The melody strays little from its main purpose and most key changes are heavily related.

Answered by • Music tutor

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Ignoring air resistance and assuming gravity to equal 9.81. If a ball of mass 1kg is dropped from a height of 100m, calculate it's final velocity before it hits the ground.

G = 9.81u = 0s = 100v²= u²+ 2asv²= 2 * 100 * 9.81v = root( 2 * 100 * 9.81) = 44.29ms^-1
This question can be made into a 3 part question suitable for adv...

Answered by • Maths tutor

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What are the two types of waves and what are some of their uses/sources?

Transverse:Radio signalsElectromagnetic radiationTVPhone serviceOcean wavesLongitudinal:Seismic wavesSound wavesect.

Answered by • Physics tutor

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What is the general formula for Hydrocarbons?

Hydrocarbons have Hydrogen-Carbon bonds and carbon-carbon bonds. The formula is H_nC_2n+2This is made clear when diagrams are drawn from different hydrocarbons and you can deduce this ...

Answered by • Chemistry tutor

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