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Physics, 22.06.2019 09:00
Sobre transformaçÃĩes cÃclicas, sÃŖo feitas algumas afirmaçÃĩes, determine quais estÃŖo corretas. i â a variaçÃŖo de energia interna em uma transformaçÃŖo cÃclica Ê nula; ii â o trabalho, em uma transformaçÃŖo cÃclica, Ê sempre positivo; iii â ao completar um ciclo, o gÃĄs tem a mesma temperatura com a qual começou a transformaçÃŖo; iv â uma transformaçÃŖo cÃclica Ê, obrigatoriamente, composta de transformaçÃĩes conhecidas, como adiabÃĄtica, isocÃŗrica, etc: a) i e iii b) i e ii c) ii e iii d) i e iv e) iii e iv
Answers: 1
Physics, 22.06.2019 10:00
Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?
Answers: 2
Physics, 22.06.2019 19:20
On a hot saturday morning while people are working inside, the air conditioner keeps the temperature inside the building at 22degreesc. at noon the air conditioner is turned off, and the people go home. the temperature outside is a constant 33degreesc for the rest of the afternoon. if the time constant for the building is 4 hr, what will be the temperature inside the building at 4 : 00 font size decreased by 2 upper p . font size decreased by 2 upper m .? at 6 : 00 font size decreased by 2 upper p . font size decreased by 2 upper m .? when will the temperature inside the building reach 24degreesc? 324281
Answers: 3
For al, its atomic number is 13 and its mass number is 27. how many neutrons does it have...
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