subject
Physics, 08.09.2021 16:10 kemzzoo9338

Một xe khởi hành từ A về B lúc 9h với vận tốc 36 km/h. 9h30p sau một xe từ B về A với vận tốc 54km/h. AB là đường thẳng. Khi 2 xe gặp nhau lúc 10h cách nhau 45km. a) tìm khoảng cách AB
b) 2 xe gặp nhau lúc mấy giờ và cách A bn km? chọn A làm gốc tọa độ, chiều dương
A->B, gốc thời gian 9h

ansver
Answers: 2

Another question on Physics

question
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
question
Physics, 22.06.2019 17:00
How much energy is supplied to each coulomb of charge that flows through a 12-v battery?
Answers: 1
question
Physics, 22.06.2019 17:40
Which component of the earth’s atmosphere is decreased due to photosynthesis?
Answers: 1
question
Physics, 22.06.2019 18:20
Awave with a frequency of 500 hz is traveling at a speed of 100 m/s.what is the wavelength?
Answers: 1
You know the right answer?
Một xe khởi hành từ A về B lúc 9h với vận tốc 36 km/h. 9h30p sau một xe từ B về A với vận tốc 54km/h...
Questions
question
Mathematics, 12.02.2021 17:50
question
Mathematics, 12.02.2021 17:50
question
Spanish, 12.02.2021 17:50
question
Mathematics, 12.02.2021 17:50
Questions on the website: 13722363