Top answers

Describe and explain the factors that determine supply and demand, and use diagrams to support your answer.

Factors of Demand:Taste, Substitutes, Complements, Necessity, Income Factors of Supply:Raw materials. Labour, Tax, Weather students will pick one type of shift they will analyse. Once key factors are determi...
KM
Answered by Krishna M. • Economics tutor
2512 Views

State what is meant by a Doppler shift and describe how it was used to study the movement of galaxies.

Doppler shift can be described as the fractional change in wavelength due to relative motion between an observer and a wave source. The wavelength of a line in the spectrum of light emitted by a distant regi...
ZM
Answered by Zubin M. • Physics tutor
2844 Views

Make y the subject of the formula: p = √x+y/5

P is currently the subject of the formula, y needs to be isolated. To do so first we need to get rid of the square root on the right side of the formula. Opposite to square root is square, so if we square bo...
HM
Answered by Hannah M. • Maths tutor
10837 Views

Expand the brackets: (2m-3)(m+1)

To expand the brackets we consider each bracket separately, (2m-3) which is multiplied by (m+1). Consider first the first identity in each bracket:2m x m = 2m 2 Then consider the first identity and the last ...
HM
Answered by Hannah M. • Maths tutor
5975 Views

Name a suitable chemical used to convert propanol to propanoic acid?

Acidified Potassium Manganate(VII). Propanoic acid (which is a carboxylic acid) can be made by oxidising propanol (which is an alcohol). In this case, oxidation involves adding an oxygen atom and removing tw...
KG
Answered by Kate G. • Chemistry tutor
13768 Views