Physics, 17.01.2020 07:31 ebigham5117
Alarge grinding wheel in the shape of a solid cylinder of radius 0.330 m is free to rotate on a frictionless, vertical axle. a constant tangential force of 210 n applied to its edge causes the wheel to have an angular acceleration of 0.978 rad/s^2. what is the moment of inertia of the wheel?
Answers: 3
Physics, 21.06.2019 16:10
Zirconium has an hcp crystal structure and a density of 6.51 g/cm3. (a) what is the volume of its unit cell in m3? (b) if the c/a ratio is 1.593, compute the values of c and a.
Answers: 3
Physics, 21.06.2019 23:30
You and a friend (alex) are at a a tree-top adventure park .. . part of the course requires you to climb up a rope. you both climb the same rope in the same amount of time. however, the tension in the rope is greater when alex climbs. who did the most work? alex did - more tension means more force - more force means more work was done you did - less tension means less force - less force means more work was done to find the work done, the force exerted and distance moved are multiplied. a couch is moved twice before you are happy with its placement. the same force was used to move the couch both times. if more work is done the first time it is moved, what do you know about the distance it was moved? when more work was done, the couch was moved less. when more work was done, the couch was moved further. when more work was done, the couch wasn't moved at all. when more work was done, the couch was moved the same distance.
Answers: 2
Physics, 22.06.2019 04:30
In a system, when potential energy decreases, then entropy also decreases. true false
Answers: 3
Physics, 22.06.2019 09:00
Sobre transformaçþes cĂclicas, sĂŁo feitas algumas afirmaçþes, determine quais estĂŁo corretas. i â a variação de energia interna em uma transformação cĂclica ĂŠ nula; ii â o trabalho, em uma transformação cĂclica, ĂŠ sempre positivo; iii â ao completar um ciclo, o gĂĄs tem a mesma temperatura com a qual começou a transformação; iv â uma transformação cĂclica ĂŠ, obrigatoriamente, composta de transformaçþes conhecidas, como adiabĂĄtica, isocĂłrica, etc: a) i e iii b) i e ii c) ii e iii d) i e iv e) iii e iv
Answers: 1
Alarge grinding wheel in the shape of a solid cylinder of radius 0.330 m is free to rotate on a fric...
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