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A Level

what factors determine enzyme activity?

several factors play a role in the rate of an enzyme catalysed reaction. substrate concentration: The amount of substrate in the solution. The higher the concentration of substrate the mo...

JL
Answered by Jack L. Biology tutor
3641 Views

Find dy/dx in terms of t for the curve defined by the parametric equations: x = (t-1)^3, y = 3t - 8/t^2, where t≠0

The first step is to recognise that, by the chain rule, dy/dx = dy/dt * dt/dx.
dy/dt and dt/dx can both be found by differentiating the functions given in the question, to give dy/dt and dx/dt. dt/d...

AC
Answered by Alex C. Maths tutor
21491 Views

integrate the following: 2x^4 - 4/sqrt(x) +3 with respect to x

The 3 terms of this equation can be integrated separately. The general integration of xn is (xn+1)/n+1 where n is a real number not equal to -1. This can be applied to the terms 2x

AF
Answered by Adrien F. Maths tutor
3812 Views

Después de haber estudiado la obra 'La Casa de Bernarda Alba', ¿sientes alegría y optimismo o tienes otros sentimientos?

EXAMPLE ANSWER: ‘La Casa de Bernarda Alba’ trata de una época muy estricta y religiosa en España (1936), justo antes del inicio de la Guerra Civil. Presenta un gran número de temas e ideas, y de...

VB
Answered by Vanessa B. Spanish tutor
5534 Views

The pH of pure water can vary depending on the temperature it is held at. Does that mean pure water can be acidic or alkaline?

Interestingly, pure water will always be neutral, regardless of pH. To understand why, we have to properly look at what pH means. pH is a measure of the number of free H+ ions in a solution or liquid. The...

SN
15313 Views

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