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What is the area of triangle ABC where AB = 5 cm, BC = 12 cm and angle ABC = 50 degrees?

To find the area of a triangle where the length of the base and perpendicular heights are not known, use the sine rule to find the area. This is: Area = 0.5 x a x b x sin(angle between lengths a and b) Hence...
AS
Answered by Aminah S. Maths tutor
9564 Views

How does a nerve transmit impulses?

At rest a nerve cell or fiber has more sodium (NA+) ions in the extracellular fluid and more potassium (K+) ions in the intracellular fluid. There are both NA+ and K+ ion channels in the membrane of the nerv...
KW
Answered by Kay W. Biology tutor
3457 Views

Experimentally, how would you calculate the Young's modulus of a material?

Young's modulus = stress/strain. Stress = F/A Strain= e/l. Measure the length of a wire between 2 points, placing a marker at each. Also measure the diameter to calculate the cross sectional area of the wire...
BL
Answered by Ben L. Physics tutor
2738 Views

When should you use the subjunctive?

To try and tackle this, my teacher taught me to use the acronym WEDDING: WISHES - using verbs such as souhaiter que or préférer que to show wishes of one person for another person. EMOTIONS - an expression o...
LP
Answered by Louis P. French tutor
6592 Views

How should I structure an essay?

First, you need to give a brief introduction proving you understand the question and outlining your points and your argument. Each paragraph should then be a point of your argument, where you state your poin...
TD
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