Top answers

Which state can a substance NOT be in if heat transfer through convection is occurring?

Solid.
CM
Answered by Calum M. • Physics tutor
4069 Views

What is an enzyme and what effect does temperature have on enzyme activity? (6 marks)

An enzyme is a globular protein that acts as a biological catalyst. They work by reducing the activation energy of chemical reactions, which increases the rate of reactions. All enzymes have an optimum tempe...
IO
Answered by Isabel O. • Biology tutor
16725 Views

What are the limitations on the Prime Minister?

The media: Can pick up on small things such as Gordon Brown referring to Gillian Duffy as a bigot. The Party: The Conservative Parties backbench demands for a European Uniion referndum when the Prime Ministe...
TC
7853 Views

What are the advantages of franchising?

The franchisee will be buying into a established brand so there will be less risk of the business failing because they have a good repuattion and have a product which consumers will demand. They will benefit...
TC
4110 Views

Describe the photoelectric effect.

The photoelectric effect is a phenomenom which occurs when photons strike a metal causing electrons to be released from the metal atoms. This occurs because the photons transfer their energy to the electrons...
IW
Answered by Iman W. • Physics tutor
4557 Views