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Physics
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What is a neutrino?

A neutrino is a fundamental particle of matter, meaning that it has no substructure (it can't be broken down further into components). It has a very low mass, so the gravitational force exerted on it and ...

PC
Answered by Patrick C. Physics tutor
7966 Views

What is a vector?

A quantity may be a scalar (just a magnitude, just a number) or a vector, with magnitude and direction. For example, speed is a measure of how fast something is going, but velocity is a measure of how fas...

PC
Answered by Patrick C. Physics tutor
3156 Views

How do diodes work?

A diode is an electrical component in a circuit. It only allows electricity to flow in one direction. It can be used to change a current from alternating to direct.

SA
Answered by Samuel A. Physics tutor
2843 Views

Can you please explain the basics of electricity? I can do the maths but I don't understand what 'voltage', 'current' or 'resistance' actually is!

The fundamental unit of electricity is 'charge'. Each electron is slightly negatively charged and it is this movement of charge around a circuit which powers our appliances. The speed of the electrons/the...

AM
Answered by Alex M. Physics tutor
3542 Views

What are Newton's Laws of Motion?

Newtons First Law:An object at rest will stay at rest, and an object in motion will stay in constant motion unless acted upon by a resultant force
Newtons Second Law:F=ma
Newtons Third Law:If o...

HA
Answered by Husein A. Physics tutor
2128 Views

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