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Physics
A Level

How do I find the half-life of radioactive isotope?

The half-life of a radioactive isotope is the time taken for half of the atoms in a given sample of the isotope to decay. Radioactivity is random and so, half-life is the average time taken for a larg...

JS
Answered by Joe S. Physics tutor
15049 Views

How does a thermal nuclear reactor work?

The thermal nuclear reactor is one of many systems used to...

JA
Answered by James A. Physics tutor
12155 Views

Show Maxwell's equations in free space satisfy the wave equation

Maxwell's equations in free space:

∇ . E 

DD
Answered by Dojcin D. Physics tutor
7087 Views

Derive I = nAVe

Over 1 second, electrons with drift velocity V travel through a wire of  cross sectional area A. Distance Vt (t = 1) multiplied by area A gives a volume AV. This volume multiplied by the electron dens...

DD
Answered by Dojcin D. Physics tutor
66589 Views

What is the difference between accuracy and precision?

When we make measurements while doing an experiment, the values we measure always have an uncertainty. We assign an uncertainty based on the equipment we are using and the way we make...

MJ
Answered by Miranda J. Physics tutor
15048 Views

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