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Explain the process of nuclear fission.

I would start by defining nuclear fission: 'Nuclear fission is the process of splitting up atoms and harnessing the energy from the reaction.' I would then proceed to explain how this occurs: 'Fission happen...
RS
Answered by Rob S. • Physics tutor
10967 Views

How can an object be at rest without friction?

Friction is a force, and no object can change speed (accelerate/decelerate) without first being acted on by a force. On a frictionless surface (with no other external forces present), there is therefore no f...
TB
Answered by Tom B. • Physics tutor
19434 Views

How would you explain general relativity?

In basic terms, general relativity is based on Einstein's equivalency principle. It states that in a closed environment, there is no way of distinguishing between the effects of gravity and of a constant acc...
SC
Answered by Sam C. • Physics tutor
4538 Views

What is the unit frequency is measured in?

Hertz (Hz), or sometimes megahertz if the Hz is very large.
BP
Answered by Bradley P. • Physics tutor
6211 Views

what depends if the universe is expanding or not

H, (see Hubble's Law)
HZ
Answered by Huairen Z. • Physics tutor
3046 Views