Recent content by Darknes51986

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    Composition of Functions: Finding g(f-1(x)) with Given Equations

    Homework Statement Given: f(x)= 1/3x + 2 and g(x)= 2x2- x + 7 Find: g(f-1(x)) Homework Equations The Attempt at a Solution x=1/3y + 2 1/3y= x - 2 y=(x-2)/(1/3) y=3x-6= f-1(x) 2(3x-6)2 + (3x-6) +7 solved to get.. 18x2-69x+71
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    How Effective is Blocking Side Gaps in Vent Filter Systems?

    I am designing these brackets on a ventilation system to hold filters that my company stocks regularly. The vent is about 49.5"x49.5" and the filters are about 23.5"x23.5". Placing 4 filters in this square vent leaves about 1.25" on each side. I have designed the brackets so that they block the...
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    How Do I Calculate the Pulley Ratio for a Complex Boat Pulley System?

    Can anyone confirm my answer or is it off?
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    How Do I Calculate the Pulley Ratio for a Complex Boat Pulley System?

    So what I do is break up the pulley into sections and add up the tensions (T) right? With the tensions from each section I can get the ratio? Is this correct? I re-drew the drawing with my work on it. 9T:1T is my answer I just need someone to check that.
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    How Do I Calculate the Pulley Ratio for a Complex Boat Pulley System?

    A guy at work gave me this drawing I have attached and asked me to find the pulley ratio. Do I need any other information such as rope lengths, pulley diameters, or load? I traded in my machine design book and don't remember exactly how to calculate the ratio. Is there anything else I can...
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    Projectile motion in a spring loaded gun

    Homework Statement 1. A Turbo Booster toy that launches a 60-gram “insect” glider projectile by compressing a helical spring and then releasing the spring when the trigger is pulled. When pointed upward the glider should ascend approximately 8 m before falling. The launcher is made with...
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    Vr in Thermo: What is It and What Is It Used For?

    I think it is used in an ideal gas formula and is used also in calculating for properties in the otto cycle...I was just curious because I had a homework problem where the answer guide used Vr but the text did not use Vr in any of its examples even though it had a list of Vr values. I don't know...
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    Vr in Thermo: What is It and What Is It Used For?

    what is Vr... I know how to get Vr from my text but not sure what it is and what its used for...Im trying to find values for internal energy for an otto cycle question...im working on EES but only know how to get the values for Vr from the text
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    [Thermodynamics] Ideal Gas Properties of Air

    what is Vr... I know how to get Vr from my text but not sure what it is and what its used for...Im trying to find values for internal energy for an otto cycle question...im working on EES but only know how to get the values for Vr from the text
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