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References: [ pseudowork: 235 ] [ ke: 1313 ]

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41. Car acceleration (score: 33): Author: Robert Carlson <Raacc@AOL.COM>; Date: Tue, 5 Feb 2002 22:29:28 -0500; But I'm *not* saying that static friction is doing work here. I'm saying it is doing pseudowork. It also does pseudowork (of the negative gender) on a disk rolling down an incline. As a second thoug; /archives/2002/02_2002/msg00208.html (4,539 bytes)
42. ENERGY WITH Q (score: 33): Author: Jim Green <JMGreen@SISNA.COM>; Date: Tue, 27 Nov 2001 23:50:17 -0700; Recognizing that work and pseudowork are two different concepts is useful. But why not to say that F*ds is work and W from the first law is "pseudowork?" Granted, I don't understand most current TV a; /archives/2001/11_2001/msg00436.html (3,901 bytes)
43. ENERGY WITH Q (score: 33): Author: "Carl E. Mungan" <mungan@USNA.EDU>; Date: Tue, 30 Oct 2001 08:30:02 -0500; Starting at the bottom page 1 it says: "Represent the object as a small box moving along a curved path, rather than as an abstract dot." A paragraph or so later it states the "Work / Kinetic Energy"; /archives/2001/10_2001/msg00771.html (8,693 bytes)
44. ENERGY WITH Q (score: 30): Author: "John S. Denker" <jsd@MONMOUTH.COM>; Date: Tue, 27 Nov 2001 14:26:16 -0500; In the context of: And it then follows that energy increase of the system = the decrease of the energy of the applicator. Total KE is conserved -- always -- even for a complicated interaction with mu; /archives/2001/11_2001/msg00412.html (5,092 bytes)
45. ENERGY BEFORE Q (was Displacement) (score: 30): Author: "Carl E. Mungan" <mungan@USNA.EDU>; Date: Thu, 11 Oct 2001 14:14:48 -0400; I only read the digest, so apologies if others have already fully answered "Ludwik as student". We are ready to generalize this observation by saying energy is the "ability to do work". IS THIS OK? I; /archives/2001/10_2001/msg00244.html (5,634 bytes)
46. Work-energy worries (score: 28): Author: John Mallinckrodt <ajm@CSUPOMONA.EDU>; Date: Tue, 8 Oct 2002 21:51:36 -0700; On Mon, 7 Oct 2002, Lemmerhirt, Fred wrote: I am about to assign the this problem: A 75kg boater tosses a 5kg anchor horizontally, straight forward across the bow of his 125kg boat at 2m/s relative t; /archives/2002/10_2002/msg00138.html (5,742 bytes)
47. non-inertial: plants (score: 28): Author: "A. R. Marlow" <marlow@beta.loyno.edu>; Date: Wed, 1 May 1996 15:09:27 +0000 (GMT); On Wed, 1 May 1996, Rauber, Joel Phys wrote: ... I don't understand Marlow's power company comments. I assume they are charging me for whatever it is that Marlow is worried about. ... If you are deal; /archives/1996/05_1996/msg00028.html (4,988 bytes)
48. ENERGY WITH Q (score: 24): Author: "John S. Denker" <jsd@MONMOUTH.COM>; Date: Sat, 1 Dec 2001 12:11:17 -0500; Eugene Mosca wrote: It seems to me this involves an understanding of only the center-of-mass work-translational kinetic energy relation. Am I missing something? What relation is that? Perhaps _I_ am; /archives/2001/12_2001/msg00008.html (7,727 bytes)
49. ENERGY WITH Q (score: 24): Author: Jim Green <JMGreen@SISNA.COM>; Date: Tue, 27 Nov 2001 23:43:01 -0700; No, you just defined pseudowork. Hey don't get me involved with a spurious thing called "pseudowork". I disavow ever using the term out loud. There is enough nonsense in physics teaching without int; /archives/2001/11_2001/msg00435.html (3,997 bytes)
50. positive and negative work (score: 24): Author: John Mallinckrodt <ajmallinckro@CSUPOMONA.EDU>; Date: Fri, 9 Nov 2001 13:50:50 -0800; On Fri, 9 Nov 2001, Joe Heafner wrote: From: "Waggoner, Bill" <BWaggoner@METROPO.MCCNEB.EDU> Assuming no change in KE of the system, I would tell a student the normal force of the floor did negative; /archives/2001/11_2001/msg00136.html (5,779 bytes)
51. work and energy - take 2 (score: 24): Author: "Carl E. Mungan" <mungan@USNA.EDU>; Date: Wed, 10 Oct 2001 15:14:21 -0400; Title: work and energy - take 2 The speed of messages on this list always amazes me. Or maybe I'm just slow. I suspect the latter. In any case.... Prompted by John M, I have re-read his paper as well; /archives/2001/10_2001/msg00215.html (10,628 bytes)
52. work and energy - take 2 (score: 24): Author: "Carl E. Mungan" <mungan@USNA.EDU>; Date: Wed, 10 Oct 2001 15:43:16 -0400; Aargh! I started out replying to a message, so styles somehow got embedded in this!!! Try again! -- The speed of messages on this list always amazes me. Or maybe I'm just slow. I suspect the latter.; /archives/2001/10_2001/msg00218.html (9,959 bytes)
53. Why work before energy in texts (score: 24): Author: John Mallinckrodt <ajmallinckro@CSUPOMONA.EDU>; Date: Mon, 15 Oct 2001 19:05:10 -0700; On Mon, 15 Oct 2001, Carl E. Mungan wrote: Next question. At the macroscopic level, every force except gravity and springs (and electric next semester) is nonconservative. Yet at the microscopic leve; /archives/2001/10_2001/msg00334.html (5,826 bytes)
54. Oh No! - Another question on heating (score: 16): Author: "Carl E. Mungan" <mungan@USNA.EDU>; Date: Fri, 12 Dec 2003 09:17:37 -0500; Bob LaMontagne queried: I know this subject has been talked to death, but I'd like to ask the 'heat is a verb' crowd what they would consider an acceptable student answer to the following question: '; /archives/2003/12_2003/msg00079.html (5,621 bytes)
55. Oh No! - Another question on heating (score: 16): Author: Bob LaMontagne <rlamont@POSTOFFICE.PROVIDENCE.EDU>; Date: Fri, 12 Dec 2003 11:05:43 -0500; Carl - thanks for the response. It is precisely your comment in example 2 that prompted my question. It seems that using the verb form for heat will constantly generate the 'collision' of meanings in; /archives/2003/12_2003/msg00083.html (6,440 bytes)
56. Oh No! - Another question on heating (score: 16): Author: Jack Uretsky <jlu@HEP.ANL.GOV>; Date: Fri, 12 Dec 2003 14:05:37 -0600; Hi allIt is important to distinguish whether a question is about physics or about language. One way to do this is to use operational definitions of words, as Dick Hake and I emphasize in the Discussi; /archives/2003/12_2003/msg00096.html (6,711 bytes)
57. conservation of momentum (was Re: Heat as an indestructible substance) (score: 16): Author: Bob Sciamanda <trebor@VELOCITY.NET>; Date: Fri, 9 May 2003 14:11:52 -0400; In response to your 3: A) I do not consider cons of energy (1rst Law of Thermo) as a generalization of any work-energy theorem of mechanics. The (pseudo) WE theorem knows nothing of energy transfer o; /archives/2003/05_2003/msg00081.html (5,605 bytes)
58. Work-energy worries (score: 16): Author: Jim Green <JMGreen@SISNA.COM>; Date: Fri, 11 Oct 2002 17:17:29 -0600; I have to return to something like my previous example. I stretch and then release a mass on a horizontal spring (on the surface of a heavy, frictionless table with the other end of the spring attach; /archives/2002/10_2002/msg00271.html (4,869 bytes)
59. Car acceleration (score: 16): Author: Robert Carlson <Raacc@AOL.COM>; Date: Tue, 5 Feb 2002 19:50:49 -0500; In a message dated 2/5/2002 5:49:53 PM Central Standard Time, ajmallinckro@CSUPOMONA.EDU writes: Let's compare on this very simple problem. A car of mass m starts from rest and accelerates due to a c; /archives/2002/02_2002/msg00200.html (4,169 bytes)
60. positive and negative work (score: 16): Author: "Carl E. Mungan" <mungan@USNA.EDU>; Date: Fri, 9 Nov 2001 14:58:27 -0500; "Discuss whether any work is being done by each of the following agents and, if so, whether the work is positive or negative: d) the leg muscles of a person in the act of sitting down." Answer the fo; /archives/2001/11_2001/msg00126.html (5,111 bytes)

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