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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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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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Integrate with respect to x [x^2]

Integrate(x2)When we integrate we use the formula xn+1/n+1So therefore as in this case n=2So taking this all into account, the integral of x2 = x3/3

Answered by Maths tutor
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What is the importance of the 'refractory period' after an action potential has been generated?

The refractory period is a period of recovery after an action potential where the ion channels will not open and the membrane can't be excited or depolar...

Answered by Biology tutor
12246 Views

∫ 4/x^2+ 5x − 14 dx

For this problem we want to look to split it into logical steps We first identify that it is an integration problem without limits therefore there will be a constant of integration +C present The denomina...

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Answered by Kostas K. Maths tutor
4015 Views

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