Physics, 04.08.2019 22:30 eymurezgi1

There is a positive correlation between the number of people that purchase snow blowers in a given year and the number of people who fall on the ice clearing snow from their sidewalks in that year. give three possible explanations for what might be causing the relation between these variables. be sure your explanations involve three different directions of causation.

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Possible explanation one would be people are outdoors more due to the use of the snow blower and are thus more susceptible to falling as a result if the increased time spent near or on the ice. Possible explanation two is the snow that's removed from their sidewalk can no longer provide a traction surface between the people clearing the snow and the ice that lies beneath the snow. And possible explanation number three would be that the snow blowing machine, being a new piece of equipment to people, requires a level of agility to operate and inexperienced operators lack the agility to use the piece of equipment.

Answer from: Quest

quantum mechanics or quantum physics is physics of very small objects (particles) and physical entities.

quantum physics has some parallels to our macro world and some pretty unique ideas which theoretically and mathematically proven to be true even though we will never be able to access them because of our size.

there are many types of particles: subatomic, elementary etc.

subatomic means they are smaller than atom, elementary means they are at the very basis of everything.

subatomic particles are for eg. protons, neutrons but not electrons.

elementary particles are categorised into 3 groups by what they do.

these 3 groups are quarks, leptons and bosons.

light for example is a particle more precisely a photon a part of leptons.

proton (subatomic particle) is made out of 2 up quarks and 1 down quark each of these has a fractional charge like $\frac{1}{3}$ . (i crazy)

most famous scientist who contributed to this physics are:

max planckalbert einsteinerwin schrödingermany

the topic itself us understand a lot and will probably be vastly used in the future (quantum computers, understanding the big bang,

we also must not forget quantum effects like:

superposition (where 1 thing can be this and that at the same time),entanglement (where two particles are seemingly connected by some sort of unknown (or known) force, energy, matter (i know all that can be the same at least it was at the beginning)

and there is more. but probably too much for this answer to be consistent due to my average understanding of this topic.

hope this you understand quantum mechanics a little more. i'm not an expert in the topic (so don't be like wth if you are an expert) but i'm very interested in it.

anyways quantum physics is a very hard topic (harder than physics (perhaps)) therefore searching for every information there is about it and learning it is unfortunately impossible (you can only specialise into 1 - 3 things or more (perhaps

have fun and i wish you luck!

r3t40

Answer from: Quest

a and c

c is 100% but i am confused in a

For which optical devices does d sometimes have a positive value

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