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Differential Equations, Separable, Simplification of answer
1. The problem statement, all variables and given/known data
I believe I have solved this differential equation, yet do not know how the book arrived at it's answer...

Solve the differential equation in its explicit solution form....

Differential Equations, Separable, Simplification of answer
Looking For Books! Hardware, Computers, Electroncs -- Beginner
Hello Reader,
I am looking into electronics and how the physically work. I'm less interested in the programing side of them and more interested in how to build them. Eventually I would like to be able to build computers and program them but that is a long way off.

Does anyone have any...

Looking For Books! Hardware, Computers, Electroncs -- Beginner
Biomass fired boiler
Biomass fired boiler which is a Horizontal type with a single drum belongs to the traveling grate boiler. It is a high efficient and environment-friendly product that can easily burn shaped biomass...

Biomass fired boiler
Is my math study plan suitable?
Hello, I have been reading the posts on this website and they have really helped me out in finding good books. I will be starting university math next year and have formed the following study plan for the year (the books I list are merely the ones I start with -- I will of course read more books...

Is my math study plan suitable?
A chain falling off a rotating disc
1. The problem statement, all variables and given/known data
A uniform chain of length L = πR and mass M is placed on the upper half of a
uniform thin disc of radius R and mass M. The disc is placed vertically and can rotate freely
about its center that is fixed in space. With a small...

A chain falling off a rotating disc
RIP Chris Squire - Yes Bassist
RIP Chris Squire - Yes Bassist
electron current in metals
we generally talk about electron current in metals.but when an electron leaves, it leaves a hole in its place.
does the hole current really exist in metals?please explain the stuff.
What's the unitary matrix equivalent to a beam splitter?
I've seen various different matrices used to represent beam splitters, and am wondering which is the "right" one. Alternatively, are there various kinds of beam splitters but everyone just ambiguously calls them the same thing?

The matrices I've seen are the...

What's the unitary matrix equivalent to a beam splitter?
Experiments at home
The idea of this thread is to make a kind of collection of experiments of important scientific facts that you can do at home.

Many students in high school are quite frustrated with science, because they see it as a collection of facts to memorize. The purpose of this thread is to show how many...

Experiments at home
Electron beam hitting a metal plate
So i have this simple situation where i have an electron beam with a certain kinetic energy, and i have a metal plate connected to the ground, and the electrons hit the plate, now i want to know the voltage of the current in the wire to the ground. Now i know both kinetic energy of the electrons...

Electron beam hitting a metal plate
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