Top answers

All subjects
A Level

Describe the events that take place in a neurone which produce an action potential

  • The action potential begins when the stimulus exceeds the threshold.
    - The voltage gated sodium ion channels open.
    - Sodium ions diffuse into the axon down an electrochemical gradient.
    LG
    Answered by Lauren G. • Biology tutor
    13001 Views

Calculating the hydrostatic force on a submerged body

The hydrostatic force is a force exerted by a fluid on a submerged body. This force comes from the weight of the fluid acting down on the submerged body, so it can be derived from the equation weight (in ...

SH
Answered by Samuel H. • Physics tutor
8438 Views

How do you calculate the pH of a weak acid?

Strong acids dissociate fully in so...

JM
Answered by Joe M. • Chemistry tutor
13561 Views

How do I integrate by parts?

Lets use and example: y=xsin(x). If we try to integrate this normally, we find it very hard. The integration by parts method splits up the function we are integrating into manageable bits. The formula...

BW
Answered by Barnaby W. • Maths tutor
4910 Views

What is the difference between DNA and RNA?

DNA is a double helix, made up of two polynucleotide strands.  RNA is comprised of only one polynucleotide strand.  

The sugar in the sugar-phosphate backbone of DNA is deoxyribose, whereas ri...

CB
Answered by Claire B. • Biology tutor
25844 Views

We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

Company Information

CareersBlogSubject answersBecome a tutorSchoolsSafeguarding policyFAQsUsing the Online Lesson SpaceTestimonials & pressSitemapTerms & ConditionsPrivacy PolicyGender Pay Gap Reporting

Popular Requests

Maths tutorChemistry tutorPhysics tutorBiology tutorEnglish tutorGCSE tutorsA level tutorsIB tutorsPhysics & Maths tutorsChemistry & Maths tutorsGCSE Maths tutors
CEOP logo
CLICK CEOP

Internet Safety

Sagepay logo

Payment Security

Cyber Essentials logo

Cyber

Essentials

MyTutor is part of the IXL family of brands:

IXL

Comprehensive K-12 personalized learning

Rosetta Stone

Immersive learning for 25 languages

Wyzant

Trusted tutors for 300 subjects

Education.com

35,000 worksheets, games, and lesson plans

Vocabulary.com

Adaptive learning for English vocabulary

Emmersion

Fast and accurate language certification

Thesaurus.com

Essential reference for synonyms and antonyms

Dictionary.com

Comprehensive resource for word definitions and usage

SpanishDictionary.com

Spanish-English dictionary, translator, and learning resources

FrenchDictionary.com

French-English dictionary, translator, and learning

Ingles.com

Diccionario ingles-espanol, traductor y sitio de apremdizaje

ABCya

Fun educational games for kids

© 2026 by IXL Learning