![subject](/tpl/images/cats/fizika.png)
Physics, 18.02.2021 19:50 adiboo2004
During a weight lifting contest, a weight lifter lifts a set of weights a over his head to a height of 1.75 m. The weights have a mass of 1500kg What Potential Energy do the weights now possess? (WITH PROOF)
![ansver](/tpl/images/cats/User.png)
Answers: 2
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 14:00
Which statements describe the relationship between science and society? check all that apply. science is influenced by the needs of society. science and society are independent. science seeks ways to meet the needs of society. scientists find new ways to address societal concerns. scientists improve existing products.
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 16:30
Aball bearing at 220.0 °c is dropped into a cup containing 250.0 g of water at 20.0 °c. the water and ball bearing come to a temperature of 30.0 °c. what is the heat capacity of the ball bearing in j/°c? (hint: how are the algebraic signs of q related for the ball bearing and the water? )
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 06:30
2kg of refrigerant 134a undergoes a polytropic process in a piston-cylinder assembly from an initial state of saturated vapor at 2 bar to a final state of 12 bar, 80 degree c. a)determine the work for the process in kj. b)sketch the process on a p-v diagram.
Answers: 2
![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
You know the right answer?
During a weight lifting contest, a weight lifter lifts a set of weights a over his head to a height...
Questions
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
History, 31.01.2021 17:30
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/health.png)
Health, 31.01.2021 17:30
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 31.01.2021 17:30
![question](/tpl/images/cats/istoriya.png)
History, 31.01.2021 17:30
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 31.01.2021 17:30
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 31.01.2021 17:30
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
English, 31.01.2021 17:30
![question](/tpl/images/cats/mat.png)
Mathematics, 31.01.2021 17:30
![question](/tpl/images/cats/mat.png)
Mathematics, 31.01.2021 17:30
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/istoriya.png)
History, 31.01.2021 17:30
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 31.01.2021 17:30
![question](/tpl/images/cats/himiya.png)
Chemistry, 31.01.2021 17:30