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I Have An Engineering Homework Or Assignment Question

Personal Stories, Advice, and Support 2 People

    Work Consumed By Pump

    For a pump, why do I need to use Bernoulli's equation: (P1)/(rho1) + [(v1)^2]/2 + (z1)*g + work_in = (P2)/(rho2) + [(v2)^2]/2 + (z2)*g + energy_loss instead of energy balance used for compressors, turbines ect.: E_in - E_out = delta_E_system (h1) + Work_in - (h2...
    maydaybandit maydaybandit 22-25, F 2 Responses Oct 19, 2009

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    Combined Loading - Stresses

    As part of an assignment, I need to find the maximum principal stress on the shaft due to the bending, twist and shear (See image below - sorry about the mess and illegibility).  I was going to use 'option 1' but I'm not sure I can since the maximum occurs at different...
    maydaybandit maydaybandit 22-25, F 5 Responses Sep 22, 2009

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    Streamline Section Dimensions To Minimise Area For A Given Moment Of Inertia

    I need to find the values of thickness (t), mean diameter (D) and mean length (L) that will give the minimum area for the streamlined section, given that it's moment of inertia is 5.42 in^4. Some equations: (the I's and A's after all K's here are meant to be subscripts, but they...
    maydaybandit maydaybandit 22-25, F 6 Responses May 25, 2010

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    Related Experiences

    Alright I haven't been on here in forever..ask away!
    juuuuuulia37 juuuuuulia37 13-15, F 2 Responses 2 hrs ago

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    Not necessarily a random thought, but someone sent me this and it seems like fun. Lets play the question game, this will be a fun way to meet new people. Comment on this story with...
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    pet peeves #976: I hate when I'm going to the bathroom at home and I get asked questions through the closed door ... this is then only place that is my fortress of solitude, do not...
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    I have not personally had ECT, but my brother did in the 60's and I have some questions. Do any of you remember the pre treatment? Do any of you remember anything about the...
    emmabovary13 emmabovary13 56-60, F 9 hrs ago

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    My husband's mother is awesome to me, maybe because she is so very different to my own mother. There may be swearing, shouting to be heard over the TV and shocking stories..but...
    GalateaSpheres GalateaSpheres 36-40, F 10 Responses 14 hrs ago

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    Is it grace or is it Saturday law and Sabbath keeping??? Here is the side that clearly explains grace: Regarding Saturday or Sunday worship, I found the following. So many of...
    HeavenKnowsWhatComesOverMe HeavenKnowsWhatComesOverMe 18-21, F 14 hrs ago

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    I absolutely hate homework! These past two years of school I just try to get along w my teachers so they will pass me and it has worked! I hope it works this following school year...
    Caliboyy14 Caliboyy14 13-15, M 16 hrs ago

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    I have been pulling my hair for about 15 years, though I go through periods of time where I don't pull as much or don't pull at all. I started graduate school in June of last year...
    Singvogel Singvogel 22-25 17 hrs ago

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    Questions questions questions questions... I can be a waterfall of questions...
    SlaveInTraining21 SlaveInTraining21 18-21, M 1 day ago

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    My adorable little niece Rianna is six years old. My sister drops her off and I baby sit her every other weekend. This little girl is so fresh now. I actually used to smack her on...
    msjennycraig msjennycraig 31-35, F 1 day ago

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    Question everything! What are your questions for me? Ask me!
    WolfFenrir WolfFenrir 26-30, M 1 Response 1 day ago

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    Great questions from The Questionator. I log on just to see if there are new ones to answer. : >
    IntomeYousee IntomeYousee 36-40, F 2 days ago

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    Hi everyone, I am an A Level anthropology student, and over the summer I have to conduct an investigation for part of the course. My chosen topic is synesthesia, because I have it...
    emiliadsc emiliadsc 16-17, F 1 Response 3 days ago

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    As the title suggests, I have made many mistakes in life and have many regrets in life. It may be too young for me to make such a statement because I am a senior in high school...
    euroforce euroforce 18-21, M 5 days ago

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    Final episode in history of my inner life. Senior year and hs. Like I mentioned previously, senior year was absolutely chaotic. I had left the house I'd lived in the longest of...
    PinkMellow PinkMellow 18-21, F 1 Response 6 days ago

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    Page One Engine With no monotonous you with all the details between, we at the moment are associated with what is probably going to be the biggest IM start of all time R11; Dori...
    Michael0962opo3 Michael0962opo3 31-35, M 1 Response 6 days ago

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    I am working on an assignment for my current college course dealing with intercultural communication. The assignment requires that I ask someone who is not from the US and has...
    localrocklover localrocklover 26-30, F 6 Responses 6 days ago

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    I will answer any question on here any question
    Bigtan123 Bigtan123 18-21, M 1 Response Jun 24

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    don't go for a dirty questions couse i'm not gona answer just nice questions try to be nice 😑
    Sozdar Sozdar 18-21, F 1 Response Jun 24

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    It was around 4 years ago, when I was just going into the 6th Grade, I had friends who were going to the same middle school as me but others who didn't, but one day in the middle...
    AlexH56 AlexH56 16-17, M Jun 23

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    Will you sir/madam, be so kind to ask me a question? and I will answer as truthfully as I can to every singel question.
    Fenriis Fenriis 18-21, T 1 Response Jun 23

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    Will you sir/madam, be so kind to ask me a question? and I will answer as truthfully as I can to every singel question.
    Fenriis Fenriis 18-21, T 1 Response Jun 23

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    As I was putting together a banker's box to file some old project material for work, it dawned on me that I could likely put one of these together in seconds if I had an...
    Cherbelle Cherbelle 41-45, F 2 Responses Jun 23

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    On EP there are unspoken rules among communication to one another, boundaries, limitations each and everyone of us has different sets of rules. It's nearly impossible to avoid...
    Nual Nual 22-25, F 2 Responses Jun 23

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    I answer questions on the questions section from time to time . People get offended so easily. Seems truth or facts seem to be issues for people or honest dialogue.
    deleted deleted 26-30 Jun 23

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    Lol in 5th grade (I'll never forget this) u threw a desk at my teacher. And considering how weak I am I'm surprised and impressed. The reason I threw a desk at her was because my...
    anagapesis anagapesis 16-17, F 3 Responses Jun 23

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    So....I was talking to this guy I've never spoken to before and he's like, "I need a real friend, they're so hard to come by in real life, I just need a different perspective on...
    09TiskTisk 09TiskTisk 31-35, F 10 Responses Jun 22

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    Entertain me with your questions! Amuse me peasants >:) Just kidding, but seriously, you can ask me questions if you'd like :)
    LetForeverBelongToTheDead LetForeverBelongToTheDead 18-21, M 1 Response Jun 22

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    Ever have one of those times when you wife wants to borrow your more fuel efficient car while hers is in the shop leaving you with the Saturn? Now the L200 is a great car. Its' a...
    tastyfrzz tastyfrzz 46-50 Jun 21

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    Media,mechanics, design and technology, engineering, physics and maths
    blueboyblue blueboyblue 22-25, M Jun 19

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    Have to start on a summer assignment to get into AP English next year. I'm not ready.
    justthat1girl99 justthat1girl99 16-17, F 3 Responses Jun 18

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    A while ago my friend and I where a gay couple in a play...Nothing serious, just holding hands...Acting...But, for me...idk...It made my heart skip...Im just really confused by it...
    screeminganvil8 screeminganvil8 16-17, M 1 Response Jun 18

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    And honestly I have been begging for answers That you and only you can give to me. My voice crying loud, I've been crying for days now, And as I start to run, I stop to breathe...
    CallmeHopelessNotRomantic CallmeHopelessNotRomantic 36-40, F 1 Response Jun 17

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    NYC is staggering to the senses: hectic, overcrowded streets and people jaywalking everywhere in a rushed tempo, the air is filled with a combination of exhaust fumes, underground...
    Injoy1767 Injoy1767 46-50, F 2 Responses Jun 16

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    I'm really just looking for some fun questions. I think my favorite thing to do is answer questions. Anyways, I promise to answer anything honestly. And if you want, send me a...
    deleted deleted 26-30 1 Response Jun 15

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    Usually I ignore some questions but I'm making a promise that I will answer all despite how vulgar. Fire away and ask some really interesting questions, get to know me xxx
    deleted deleted 26-30 6 Responses Jun 15

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    If anyone could please help me out and guide me a bit, I would truly appreciate it. I will try to keep it short. I believe I have been awakened and if not, I am on my way to it. I...
    DifferentbyNature DifferentbyNature 18-21, F Jun 12

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    I like to question everything.I love thinking about things and why something is the way it is.and usually a question will lead to even more questions and more research on those...
    simpleandpossible simpleandpossible 22-25, F 2 Responses Jun 12

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