Herman Trivilino's latest activity
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Herman Trivilino replied to the thread Undergrad Is a half submerged object submerged in its own displaced water?.Our brains do that. -
Herman Trivilino replied to the thread What did you do with your old college textbooks?.In 1993 my immediate predecessor John Hubisz "retired" to teach in a different state, he had a building constructed to serve as his...
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Herman Trivilino replied to the thread High School Internal energy and gravitation.Here's the problem. Textbooks and instructors often refer to the gravitational potential energy of an object, such as a ball or in your...
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Herman Trivilino replied to the thread What did you do with your old college textbooks?.We sold our set of encyclopedias for $1 by advertising in our local Facebook group. Digital is taking over. I was shocked when students...
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Herman Trivilino replied to the thread What did you do with your old college textbooks?.That's a good way to make sure that they go to someone who has at least some appreciation for them.
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Herman Trivilino replied to the thread What did you do with your old college textbooks?.I kept my textbooks for decades because if I wanted to look something up there's no substitute for revisiting a page I learned from...
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Herman Trivilino replied to the thread Undergrad Light clock treating horizontal and vertical motion differently?.In this scenario is the clock at rest? There are an infinite number of reference frames for which your example is true, and those...
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Herman Trivilino replied to the thread Undergrad Light clock treating horizontal and vertical motion differently?.One time at a department meeting the chair declared that some educational data we'd collected was "bad" because it didn't show the...
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Herman Trivilino replied to the thread Undergrad Why is water pressure increased in a plastic bag in a bucket?.It's smaller than that! We don't have 1 ft of pressure gradient. The 1 ft is the amount of pressure, but the height of the bag, just a...
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Herman Trivilino replied to the thread Undergrad Light clock treating horizontal and vertical motion differently?.Einstein was very careful about the way he worded the 2nd Postulate. He stated the speed of light (in a vacuum) is indepedendent of the...
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Herman Trivilino replied to the thread Undergrad Light clock treating horizontal and vertical motion differently?.That's not relevant! What we're doing here is using the two postulates to draw conclusions. This entire thread is a discussion of the...
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Herman Trivilino replied to the thread Undergrad Why is water pressure increased in a plastic bag in a bucket?.Just checking to make sure you understand what is meant by pressure gradient as opposed to pressure. Pressure gradient refers to the...
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Herman Trivilino reacted to A.T.'s post in the thread Undergrad Why is water pressure increased in a plastic bag in a bucket? with
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The vertical pressure gradient in the medium surrounding the bag, is greater in D than in B. This affects the pressure gradient in the... -
Herman Trivilino replied to the thread Undergrad Is a half submerged object submerged in its own displaced water?.Well, which is it? Slightly smaller or snug? The issue is this: Can water move around the edges of the object or are you making it more...
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Herman Trivilino replied to the thread Undergrad Is a half submerged object submerged in its own displaced water?.If it were in a state of neutral buoyancy you wouldn't need to hold it (with a string or anything else).