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How do I make sure that I do not run out of time in the essay questions of the exam?

Timing in the History A Level is one of the biggest challenges encountered by most people who are preparing for the exam: it's very common for students to worry about running out of time, or not writing enou...
AS
Answered by Alex S. • History tutor
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What is homeostasis and give 3 examples of homeostasis in the body.

Homeostasis is the maintaining of a constant internal environment to allow for healthy functioning of the body. Three examples would be the control of water levels in the kidney via ADH, control of temperatu...
Answered by • Biology tutor
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A particle of mass m moves from rest a time t=0, under the action of a variable force f(t) = A*t*exp(-B*t), where A,B are positive constants. Find the speed of the particle for large t, expressing the answer in terms of m, A, and B.

First, we need to find a formula for the speed of the particle, v, at a given time, t. Relate the speed, v, to the force f, using Newton's 2nd Law: f(t) = m dv/dt (remembering that acceleration is the time-d...
Answered by • Maths tutor
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Find the general solution of the differential equation d^2y/dx^2 - 2(dy/dx) = 26sin(3x)

2 Parts to this question - requires a complimentary function (treating equation as if right-hand side (RHS) = 0) and a particular integral (the general solution for where the RHS = 26sin(3x) ) 1) The complim...
MP
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Décrivez votre vie d'adolescent(e)

En tant qu'adolescente, j'ai l'habitude de faire des activités avec mes ami(e)s. Le samedi, nous allons souvent jouer dans un parc près de chez nous. Le soir, nous aimons aller au cinéma de notre village; ma...
Answered by • French tutor
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