Physics, 22.08.2019 21:10 poniatowski23
Asmall lightbulb is 1.06 m from a screen. a) if you have a convex lens with 20 cm focal length, where are the two lens locations that will project an image of the lightbulb onto the screen?
b) what’s the magnification in the first case (smaller distance from the lightbulb)?
c) what’s the magnification in the second case (larger distance from the lightbulb)?
Answers: 3
Physics, 22.06.2019 09:00
Sobre transformações cíclicas, são feitas algumas afirmações, determine quais estão corretas. i – a variação de energia interna em uma transformação cíclica é nula; ii – o trabalho, em uma transformação cíclica, é sempre positivo; iii – ao completar um ciclo, o gás tem a mesma temperatura com a qual começou a transformação; iv – uma transformação cíclica é, obrigatoriamente, composta de transformações conhecidas, como adiabática, isocórica, 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 10:30
Awoman holds a book by placing it between her hands such that she presses at right angles to the front and back covers. the book has a mass of m = 1.8 kg and the coefficient of static friction between her hand and the book is μs = 0.67. no attempt 50% part (a) what is the weight of the book, fgb in newtons?
Answers: 3
Physics, 22.06.2019 17:00
(a) if the pressure in gas is doubled while its volume is held constant, by what factor do (i) vrms and (ii) change? (b) is it possible to boil water at room temperature (20oc) without heating it? explain.
Answers: 3
Asmall lightbulb is 1.06 m from a screen. a) if you have a convex lens with 20 cm focal length, wher...
Mathematics, 27.04.2021 23:00
Mathematics, 27.04.2021 23:00
Mathematics, 27.04.2021 23:00
Mathematics, 27.04.2021 23:00
Mathematics, 27.04.2021 23:00
Social Studies, 27.04.2021 23:00
Geography, 27.04.2021 23:00
Mathematics, 27.04.2021 23:00
Mathematics, 27.04.2021 23:00