Physics, 24.06.2020 18:01 itsyaboiamo
No circuito apresentado é observado a associação de cinco resistores, todos com o mesmo valor R. A corrente i4, que passa pelo resistor R4, possui valor I. Com base nestes valores o especialista precisa determinar a tenção Vab entre os pontos A e B. A alternativa correta para Vab é dada por:
a) RI
b) 3RI
c) 5RI/3
d) 5RI
e)7RI
Answers: 1
Physics, 22.06.2019 07:50
The ratio of lift to drag l/d for a wing or airfoil is an important aerodynamic parameter, indeed, it is a direct measure of the aerodynamic efficiency of the wing. if a wing is pitched through a range of angle of attack, l/d first increases, then goes through a maximum, and then decreases. consider an infinite wing with an naca 2412 airfoil. estimate the maximum value of l/d. assume that the reynolds number is 9x10^6.
Answers: 2
Physics, 22.06.2019 13:30
Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length of a column of water 1.00 km high for a temperature increase of 1.00ºc. note that this calculation is only approximate because ocean warming is not uniform with depth. (answer in ×10^{-3} −3 m)
Answers: 1
Physics, 23.06.2019 02:00
Elements that have one valence electron and are very reactive are called
Answers: 1
No circuito apresentado é observado a associação de cinco resistores, todos com o mesmo valor R. A c...
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