Top answers

Why does atmospheric pressure drop when altitude increases?

(Question can be sketched with a graph) Firstly, in order to have atmospheric pressure, air molecules must collide with a surface, in this case the face of the Earth. As you gain altitude (height from face o...
HS
Answered by Henry S. • Physics tutor
4223 Views

Translate the following passage into Spanish: When I was young, I used to visit my granddad every Friday. One day, I visited him with my mum. We drank coffee and watched the football. There isn't much to do in my granddad's house.

Cuando era pequeñ@, yo visitaba a mi abuelo cada viernes. Un día, lo visité con mi madre. Bebimos cafe y vimos el fútbol. No hay mucho que hacer en la casa de mi abuelo.
AG
Answered by Anna G. • Spanish tutor
3216 Views

Explain what is meant by a Liberal Democracy

Free and fair elections- Rousseau, social contractchecks and balances/ separation of powers- jeffersonpotential to talk about constitutionalism - could use Madison as a thinker/-Beetham- argued that for a na...
FL
Answered by Freya L. • Politics tutor
2596 Views

Describe one chemical test and one physical test for pure water.

A physical test for pure water is testing the boiling or freezing point. Pure water will boil at 100 degrees Celsius and freeze at 0 degrees Celsius. One chemical test is to use cobalt chloride paper - the p...
SN
Answered by Sumrah N. • Chemistry tutor
44458 Views

Work out ∛16 as a power of two. (AQA GCSE Higher paper 2017, Q24b)

When you're working with fractional indices, I find the following rhyme really useful:"Fractional indices are like a flower: the bottom's the root, the top's the power".We have a cube root here, wh...
RD
Answered by Ruth D. • Maths tutor
22502 Views