![subject](/tpl/images/cats/fizika.png)
Physics, 18.12.2020 03:40 saggin2454
What did Edwin Hubble use to calculate the expansion rate of the universe
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Physics
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/fizika.png)
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](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 09:00
When a bicycle coasts uphill, it moves slower and slower as it climbs. why? a. its kinetic energy is transforming into heat energy. b. its potential energy is transforming into kinetic energy. c. its kinetic energy is transforming into potential energy and heat energy. d. its potential energy is transforming into kinetic energy and heat energy.
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 14:30
The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.
Answers: 1
You know the right answer?
What did Edwin Hubble use to calculate the expansion rate of the universe...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 27.08.2020 05:01
![question](/tpl/images/cats/istoriya.png)
History, 27.08.2020 05:01
![question](/tpl/images/cats/mat.png)
Mathematics, 27.08.2020 05:01
![question](/tpl/images/cats/en.png)
English, 27.08.2020 05:01
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 27.08.2020 05:01
![question](/tpl/images/cats/en.png)
English, 27.08.2020 05:01
![question](/tpl/images/cats/mat.png)
Mathematics, 27.08.2020 05:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 27.08.2020 05:01
![question](/tpl/images/cats/istoriya.png)
History, 27.08.2020 05:01
![question](/tpl/images/cats/biologiya.png)
Biology, 27.08.2020 05:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/geografiya.png)
Geography, 27.08.2020 05:01
![question](/tpl/images/cats/mat.png)
Mathematics, 27.08.2020 05:01
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 27.08.2020 05:01