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What are 'Rate equations' and why are they useful?

The rate equation of a reaction is useful to describe the relationship between the rate of a reaction and the concentration of its reactants. It is used to determine how a change in the concentration of a...

Answered by Joshua M. • Chemistry tutor

3549 Views

How to form the subjunctive in Spanish.

The subjunctive is a 'mood' which expresses desire, emotion, doubts, the abstract and unknowns. Sentences which require the subjunctive usually have three main features: there is more than one subject (

Answered by Eileen M. • Spanish tutor

1939 Views

Using case studies to support your answer, explain how similar hazards have different impacts.

First of all, it is important to acknowledge that there are two different types of hazard. The first, geophysical hazards, includes earthquakes and volcanoes. The second are hydro-meteorological hazards, ...

Answered by Rachael W. • Geography tutor

2265 Views

Given that A(sin θ + cos θ) + B(cos θ − sin θ) ≡ 4 sin θ, find the values of the constants A and B.

Since this must be true for all values of θ, and cos and sin are distinct functions, no non-zero multiple of cosθ could ever be equal to 4 sinθ for all values of θ. Therefore, the overall multiple of cosθ...

Answered by David B. • Maths tutor

8139 Views