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  • Biology:Explain how a stimulus can result in a reflex reaction:

    Stimulus, e.g. pressure or heat, is detected by receptors. This impulse is carried on neurones. Neurones meet at a synapse where neurotransmitters diffuse across the synapse. The impulse is then carried along a relay neurone then the neurotransmitters cross another synapse and then are carried on a motor neurone which causes muscle contraction to exhibit the reflex action. .

  • Maths:A bonus of £2100 is shared by 10 people who work for a company. 40% of the bonus is shared equally between 3 managers. The rest of the bonus is shared equally between 7 salesmen. One of the salesmen says, “If the bonus is shared equally between all 10 To start, find value of money shared by managers and then staff:Managers: (40/100) x 2100 = 840 Staff: 2100 - 840 = 1260 Then find share for each employee:Staff: 1260/7...

  • Physics:If a footballer kicks a ball straight down the pitch at 6 ms-1 at an angle θ of 30° above the horizontal, what is the maximum height reached by the ball?

    First we must remember our equations of motion, (SUVAT equations).S = Displacement U = Initial velocity V = Final velocity A = Acceleration T = TimeV = U + ATS = UT + (1/2)AT2 V2 = U2 + 2ASS = (1/2)*(U+V)T...

  • French:Your parents have seen this advertisement on the internet and ask you to translate it for them into English.

    Le centre de la France est l’endroit idéal pour passer vos vacances en famille. Vous y découvrirez de beaux villages qui se trouvent au milieu de champs verts. La région a toujours offert aux visiteurs un accueil chaleureux dont nos habitants sont fiers. Qui pourra résister à nos spécialités régionales. ?

  • Maths:Prove by induction that n^3+5n is divisible by 3 for every natural number.

    Proof by induction has three core elements to it. To start with you must prove that the statement is true for the 'basic case'. For the most part this is 1, but some questions state it is higher. Do this by subbing 1 into the equation and ensuring that it is divisible by 3...

  • English:What is the best way to revise for essay based subjects?

    While revision is subjective, with successful methods depending on the individual, essay based subjects are widely considered difficult to revise for. Especially during stressful times like exam season. I often wondered what the best way to revise for essay based subjects is ...

  • Biology:What is the difference between a nerve synapse and a neuromuscular junction?

    The presynaptic part of both junctions are both almost identical, although different neurotransmitters can be used depending on location and function. Acetylcholine is usually found in neuromuscular junctions...

  • Physics:Explain what the terminal velocity of an object is.

    The terminal velocity of an object is the highest velocity it can reach when falling through a defined medium, usually air in practice. This constant velocity is achieved when the net force applied to the object is zero, this means that the resistance is equal to the force being applied by ...

  • Futher Maths:It is given that f(x)=(x^2 +9x)/((x-1)(x^2 +9)). (i) Express f(x) in partial fractions. (ii) Hence find the integral of f(x) with respect to x.

    (i) Let f(x) = A/(x-1) + B/(x2+9). Multiplying through by (x-1)(x2+9) we get x2+9x = A(x2+9) + B(x-1). By substituting x=1 in to eliminate B, we ...

  • Italian:How do I know when a verb takes essere or avere when forming the passato prossimo?

    This can be a bit tricky! When forming the passato prossimo, we need an auxiliary verb (a helper verb - avere or essere) and then a past participle. Now, which auxiliary verb we use depends on whether the verb is transitive or intransitive. These words ...

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