Type Definition and 912 Threads

I have an electrical drawing which specifies a wired connection as 3# 10+ 3# 12v- Teck symmetrical. What do all these numbers mean?

Hello, I am in 4th year electronics and telecommunications. I am really good at mathematics and physics so I was thinking to go for microwave/RF engineering which I also hear is the hardest of all forms of engineering. The thing is everyone in this field which works as an engineer (not a...

For a project in AP Bio, I need to find out what kind of archetypal eukaryotic cell has a large amount of smooth er, a large amount of rough er, a moderate amount of mitochondria, no cilia, and a large amount of Golgi bodies? Thanks!

I am still deciding what to study. I have two options: ICT (information and communication technology) or Computer Science/computer engineering. It says that after ICT I will qualified for a job within the IT-, telecom- and media sector. I want to know what is better to study and what study...

Homework Statement A Phosphorous 34 decays and emits a particle. A JJ Thomson experiment is done to find out the charge to mass ratio of this particle. The particle moves undeflected through mutually perpendicular magnetic and electric fields of 2.00 x 10-3 T and 1.08 x 104 N/C, respectively...

Homework Statement 1. Let ε > 0. Determine how large n ∈ ℕ must be to ensure that the given inequality is satisfied, and use the Archimedean Property to establish that such n exist. a.) \frac{1}{n} < \epsilon b.) \frac{1}{n^{2}} < \epsilon c.) \frac{1}{\sqrt{n}} < \epsilon 2. Let ε > 0...

Hi, This is the statement of the problem of AP French's textbook "Newtonian Mechanics". 1. Homework Statement The commander of a spaceship that has shut down its engines and is coasting near a strange-appearing gas cloud notes that the ship is following a circular path that will lead...

Hi, I understand that a n type doping will increase the number of electrons, and those electrons will go to the conduction band since the valence band is already filled. I don't exactly understand the effect on the bandgap. Thanks!

Hi Guys Is there a simple test by which one could determine the type of decay a radioactive specimen is undergoing? Thanks sonip

Hi there, As an experiment, I am trying to make a type of plastic from Dibutyl Phthalate. I have a product here that is a slightly pliable, white plastic, that the maker lists the ingredients of as": DBP Dibutyl Phthalate and Titanium Dioxide". However when I mix these two in any ratio, they...

This is a very basic question, but what type of coordinate system is this? When is it useful to use? er, eθ, eΦ sinθ

I'm having some difficulty determining which type of valves the following are. I believe the first 1 is a pressure relief valve. However i don't understand the sectioning philosophy, some things just aren't sectioned that i'd expect to be, therefore I'm finding it hard to gauge which surfaces...

In some lecture hand-outs I found the following, In IEEE 754, we just put the binaries of negative fractions in the mantissa without converting to 2C, aren't we? If then, what is the above standard of FP representation? Thanks.

I am having an issue with the declared type of the return value of a function not being recognized in its call. This function clearly has its return value declared as complex*16: !----------4-vector dot product under Minkowski metric---------- function dot4(v1,v2) result(res) implicit none...

Homework Statement If angles of a quadrilateral are in the ratio 2:7:2:7, then the quadrilateral is? a) Square b) Rectangle c) Rhombus d) Parallelogram Homework Equations 2x+7x+2x+7x= 360 x=20[/B]The Attempt at a Solution Since two pairs of opposite angles of a quadrilateral are equal, hence...

Homework Statement x = (0.15 mm) cos (210x-120t) what type of wave is described by this equation? Longitudinal, transverse, angular frequency or both transverse and longitudinal Homework Equations NA The Attempt at a Solution Theres really no calculation. I thinking its longitudinal because...

Hello everybody, I am trying to replace a power cord from a CBTL coffee machine. The cord, which was accidentally cut, has the following description. svt 300v, 18 awg, 105C. I have tried different shops around LA to find the power cord, but the best I was able to find was svt, 300v, 18awg, 75C...

Hi - I'm doing an honors degree in physics by distance learning, having received my B.Sc around 20 years ago. I find there is a lot that is presented quite differently, and also stuff that I don't remember well enough - or not at all. So I'm looking for the fewest books that I can use to...

A paper was published on today's ArXiv that questions the empirical basis of the acceleration of the expansion of the universe: Marginal evidence for cosmic acceleration from Type Ia supernovae . The authors are: Jeppe Trst Nielsen1, Alberto Guanti1, and Subir Sarkar1;2 (1Niels Bohr...

in traction applications which motor is best suitable? previoulsy dc series motors were used in traction applications due to there excellent starting torque.but now a days it is being replaced by induction motors.why can't we employ synchronous machine in traction application?

In a reservoir of a well type manometer, the sealing liquid is mercury having a weight density of 132.5 KN/m^3. If the area of the well is 0.02m^2 and that of the tube is 40mm^2. Calculate the height of the measuring column if the applied differential pressure is 70KN/m^2. Relevant formulae...

So what kind of psycological reinforcement/behavioral conditioning do humans respond the best to? Eg. Positive/Negative reinforment and other techniques.

Could you tell me the physical reason, why the absorptive type sound insulation (Windowpane with some thickness) is effective only at high frequencies of sound source?

Hey guys I've attampted to do this as best I can but i need some help, becasue i know there are mistakes i have to fix.

Homework Statement [/B] 1. After a long road trip during summer break, a college student wants to estimate how long she drove between rest stops. She takes a random sample of 15 stops and records this data in hours: 1.5, 2.6, 1.75, 3.5, 2.25, 3.75, 1.8, 2.9, 3.2, 3.15, 1.5, 2, 3, 2.75, and...

I know that you can measure redshift from stars by looking at the shift in there balmer lines or more generally there line absorption spectra and seeing how far these lines have shifted from actual balmer lines or line absorption spectra of the same elements on earth. But how would you...

Can someone please type out the line element for the Godel metric (including any and all c terms and any other terms that one might omit if they were using natural units to set terms like c = 1)? I ask this because different sources on line have it written out in different ways which look...

I sometimes, actually very frequently find myself over-thinking to the point where I have to stop everything and close my eyes. As an example, just recently I was studying about data science and my brain goes like - What is data? How do you define data? What is science? When did the word...

the top one from mine is my account on here.

I am trying to wrap my brain around the evidence for accelerating expansion of the universe from type 1a supernovae. From what I understand, it was first realized that the universe was expanding at an increasing rate from discrepancies between the calculated distances to type 1a supernovae using...

If a field line is moved into a superconductor it meets resistance. This resistance is modeled by adding an image flux thread outside the superconductor which then attracts the flux thread being moved into the superconductor. Why is this attractive force an accurate model of the resistance a...

Homework Statement 1. The period of the function f(x) = tanπx + x - [x], where [.] is the greatest integer or floor function is? 2. The period of the function f(x) = sin2πx + x - [x], where [.] is the greatest integer or floor function is? Homework Equations For sin (ax+ b) + c where a,b,c...

Even though a type 1 diabetic can have insulin resistance - a Type 1 cannot have the disease of Type 2 at the exact same time. I would agree that a type 1 can have insulin resistance to synthetic insulin that they inject, though that isn't the same as the definition of the disease Type 2, in...

What type of "graph paper" do I need to graph an arbitrary solution, Ψ, of the Dirac equation in 3+1 dimensional spacetime? Assume the "graph paper" has the minimum dimensions required to do the job. Would this work? At each point of spacetime we need a complex plane which takes care of the...

Homework Statement Suppose I have an enum class named Faction and one of the constants is named DAUNT. I created a Daunt class of the enum but how can I pass in a DAUNT faction type in for Daunt?Homework Equations None The Attempt at a Solution public enum Faction { ALMIGHTY, AMBITION...

I was wondering if it would be possible to determine if a Schottky diode was n-type of p-type (in the bulk) by only using I-V measurements?

Hello! (Wave) I have written a text in LATEX for the univeristy and my prof wants to put it in the web. I wrote it using beamer. Do you think that it is a good type or should I use an other one? Should I write maybe for example an article or something else? (Thinking)

Type Ia Supernova are generally thought to be white dwarfs that, either by accretion of mass from a companion (single degenerate), or as a result of a merger with a white dwarf companion (double degenerate), approach and then exceed 99% of the Chandrasekhar limit of about 1.44 M☉, at which point...

I am making a tool for my workshop and I need a meter that I can press onto certain soft surfaces to measure their internal pressure. Obviously I will have to calibrate the meter for my specific purposes but I want to buy some and start playing around with my idea. Basically I need something...

Hello, Which type of laser are easier to make ? Micro-wave (MASER), infrared, visible light, UV... ? Which type of light leads in an easier way to a population inversion ? Is it maser because the level energy involved are closed ? Thank you

I have my highs and lows with mathematical understand. From those who are very good at mathematics what trait does you possesses that you think gives you the keys to understanding? I've been trying to become more visual with my learning of mathematics, such as visualizing/conceptualizing the the...

What type of math is used by those who work on Wall St. and make the so-called "big bucks?"

Homework Statement Two rockets, A and B each of proper length Lo, approach each other along the x-axis with speed v. their noses cross at Ta = Tb = 0. A man with a gun at the tail of rocket A is aiming perpendicular to the relative motion, and shoots at the very moment he see's the nose of A...

Lithium ion batteries infamously degrade over time. 1000 charges can cause up to 20% loss in capacity. Is there a type of rechargeable battery that will not degrade over time?

I know that the metric tensor itself utilizes Einstein summation notation but the field equations have a tensor form so the μ and ν symbols represent tensor information. I'm trying to wrap my head around how Einstein used summation notation to simplify the above field equations but it seems...

When I was a young lad, schools provided Bic pens to write with. They are not the usual pens you are used to, these pens were solid dark-blue, round in cross-section (not polygonal), and both the pen and the cap tapered gently. When capped, the cap almost divided the pen in half (i.e the cap was...

What would the problems be with having a hollow cylindrical space elevator made of carbon (e.g. recent benzene linked chains) and instead of having the payload climb to the top you filled the inside with 1 ATM of air and floated to the top via balloon?

I haven't found the link for Mathtype yet, has anyone else tried to find it yet?

hey guys I am learning greenfoot programming in college. I found out one multiple choice question that make me quite confused. Which of the following is a valid data type? A. integer B. floating C. boolean D. number Why is the answer option C? I think that integer, floating and boolean...

Determine all triangles $PQR$ for which $\cos P \cos Q+\sin P \sin Q \sin R=1$.