Physics, 25.08.2021 04:30 jsotopalomino1016
Một động cơ nhiệt lý tưởng chạy theo chu trình Cacno, nhiệt độ của nguồn lạnh là 270C, nguồn
nóng là 1170C. Biết động cơ nhận nhiệt lượng 63 kcal từ nguồn nóng trong mỗi giây. Hiệu suất và công
suất của của động cơ trên là:
Answers: 3
Physics, 21.06.2019 14:30
Apositive point charge q is fixed on a very large horizontal frictionless tabletop. a second positive point charge q is released from rest near the stationary charge and is free to move. which statement best describes the motion of q after it is released? assume q stays on the table
Answers: 1
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 06:30
Alead ball is dropped into a lake from a diving board 5m above the water . it hits the water with a certain velocity and then sink with constant velocity in bottom . it reaches the bottom 5 second after it is dropped if g= 10m/s2 . find depth of the lake and average velocity of the ball ?
Answers: 1
Physics, 22.06.2019 21:40
Engines for propeller-driven aircraft are limited in their maximum rotational speed by the fact that the tip speed of the propeller must not approach the speed of sound in air (mach i). taking 6 ft as a typical diameter for a propeller of a light airplane and 1100 fils as the speed of sound, find the upper limit on the rpm (revolutions per minute) of the propeller shaft.
Answers: 3
Một động cơ nhiệt lý tưởng chạy theo chu trình Cacno, nhiệt độ của nguồn lạnh là 270C, nguồn
nóng...
Chemistry, 27.08.2019 10:30
Mathematics, 27.08.2019 10:30
Mathematics, 27.08.2019 10:30
Mathematics, 27.08.2019 10:30
Biology, 27.08.2019 10:30
Mathematics, 27.08.2019 10:30
Mathematics, 27.08.2019 10:30
Mathematics, 27.08.2019 10:30
Chemistry, 27.08.2019 10:30
History, 27.08.2019 10:30
Mathematics, 27.08.2019 10:30
Mathematics, 27.08.2019 10:30