![subject](/tpl/images/cats/fizika.png)
Physics, 13.03.2020 03:26 rose782751
20-kg block on a horizontal surface is attached to a light spring (force constant = 8.0 kN/m). The block is pulled 10 cm to the right from its equilibrium position and released from rest. When the block has moved 2.0 cm toward its equilibrium position, its kinetic energy is 13 J. How much work is done by the frictional force on the block as it moves the 2.0 cm?
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Physics
![image](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 07:50, singhmanny3526
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
![image](/tpl/images/cats/fizika.png)
You know the right answer?
20-kg block on a horizontal surface is attached to a light spring (force constant = 8.0 kN/m). The b...
Questions in other subjects:
![Konu](/tpl/images/cats/fizika.png)
![Konu](/tpl/images/cats/biologiya.png)
Biology, 12.12.2020 16:50
![Konu](/tpl/images/cats/mat.png)
Mathematics, 12.12.2020 16:50
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 12.12.2020 16:50
![Konu](/tpl/images/cats/mat.png)
Mathematics, 12.12.2020 16:50
![Konu](/tpl/images/cats/mat.png)
Mathematics, 12.12.2020 16:50
![Konu](/tpl/images/cats/mat.png)
Mathematics, 12.12.2020 16:50
![Konu](/tpl/images/cats/mat.png)