Recent content by tripleM

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    Engineering Careers in materials science & engineering

    Hello PF, I'm wondering if anyone has information about MSE careers and fields of work. I have been doing a ton of research into the differences between a degree in chemical engineering and one in MSE, and have found a veritable plethora of information. But one thing that still stands out in my...
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    Chemical Engineering Specializations

    I'm working on my undergrad for chemical engineering/materials science and engineering, and working on a specialty in nano/molecular engineering. I am equally interested in polymers, catalysts, and therapeutic drugs. I took a leadership seminar featuring alumni who had found successful...
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    High School Is there any material in the world which cools when it is heated?

    That's basically what precipitation hardening does. Take an alloy with a maximum solubility that decreases linearly with temperature, and quench it from liquid phase. Then you take the quenched system and reheat to some temperature below the solvus, where you hold for a predetermined (by TTT)...
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    Summer Opportunities for an Undergrad Sophomore

    Hi, I'm in a similar situation. Those national labs have so many applicants, don't be discouraged. Right now I'm researching my field (chemical engineering/polymer science) to find companies where I might intern. Unfortunately, their websites NEVER *almost never* have job openings for...
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    Bowl turns black with heat Strange physicochemical phenomenon

    Let's investigate What do you use to clean it? Glycerin based soap? Alcohol? Bleach? Try using different types of cleaners that will act as solvents for the material. Observe which works best. The ceramic itself will have no negative reactions to heat, so it is in either the glaze or the...
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    Force on a point charge at the tip of a solid uniformly charged insulating cone

    Homework Statement A solid insulating cone has a uniform charge density of rho and a total charge of Q. The base of the cone had a radius of R and a height of h. We wish to find the electric force on a point charge of q' at point A, located at the tip of the cone. (Hint: You may use the...
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    Undergrad Problem understanding angular momentum and Newton 2nd law

    Torque is produced on the axle of the wheel in a direction normal to the plane of the wheel. The tension in the string holds the axle off the ground, but really you have a torque acting on the rod. t=Ialpha=alpha*1/3m*L^2 this torque must be equal to the total force of gravity to allow the...
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    High School Understanding Energy and Work Done

    You would use Newton's second law. The same rock from before is traveling down with a magnitude and direction of mass * acceleration. sumF=ma, W=FdcosT W=dmacosT, substituting. for some arbitrary acceleration, the work done is given by the equation.. If you want to use percentages, divide...
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    Graduate How Do You Solve the Equations of Motion in a Gravitational Field?

    By Kepler: \frac{d^{2}r}{dt^{2}} = GM\frac{r}{|r|^{2}} by Newton: F=ma, P=mv F=m*GM\frac{r}{|r|^{2}} Where m is the mass of the orbiting body and M is the point mass (center of orbit). We also know that motion for a particle follows the path dictated by: r=r(r,θ,t)=re_{r}...