![subject](/tpl/images/cats/fizika.png)
At 20∘c, the hole in an aluminum ring is 2.800 cm in diameter. you need to slip this ring over a steel shaft that has a room-temperature diameter of 2.804 cm . 1. to what common temperature should the ring and the shaft be heated so that the ring will just fit onto the shaft? coefficients of linear thermal expansion of steel and aluminum are 12×10−6 k−1 and23×10−6 k−1 respectively.
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 10:00
Which atomic model was proposed as a result of j. j. thomson’s work?
Answers: 1
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 15:00
Astudent throws a water balloon with speed v0 from a height h = 1.76 m at an angle θ = 21° above the horizontal toward a target on the ground. the target is located a horizontal distance d = 9.5 m from the student’s feet. assume that the balloon moves without air resistance. use a cartesian coordinate system with the origin at the balloon's initial position. (a) what is the position vector, rtarge t, that originates from the balloon's original position and terminates at the target? put this in terms of h and d, and represent it as a vector using i and j. (b) in terms of the variables in the problem, determine the time, t, after the launch it takes the balloon to reach the target. your answer should not include h. (c) create an expression for the balloon's vertical position as a function of time, y(t), in terms of t, vo, g, and θ. (d) determine the magnitude of the balloon's initial velocity, v0, in meters per second, by eliminating t from the previous two expressions.
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 21:30
The diagram shows a boulder rolling down a hill into a valley and then up the opposite hill. at which position does the boulder have the greatest kinetic energy? a b c d
Answers: 2
You know the right answer?
At 20∘c, the hole in an aluminum ring is 2.800 cm in diameter. you need to slip this ring over a ste...
Questions
![question](/tpl/images/cats/istoriya.png)
History, 11.12.2020 08:10
![question](/tpl/images/cats/mat.png)
Mathematics, 11.12.2020 08:10
![question](/tpl/images/cats/himiya.png)
Chemistry, 11.12.2020 08:10
![question](/tpl/images/cats/mat.png)
Mathematics, 11.12.2020 08:10
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 11.12.2020 08:10
![question](/tpl/images/cats/istoriya.png)
History, 11.12.2020 08:10
![question](/tpl/images/cats/mat.png)
Mathematics, 11.12.2020 08:10
![question](/tpl/images/cats/mat.png)
Mathematics, 11.12.2020 08:10
![question](/tpl/images/cats/mat.png)
Mathematics, 11.12.2020 08:10
![question](/tpl/images/cats/istoriya.png)
History, 11.12.2020 08:10
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 11.12.2020 08:10
![question](/tpl/images/cats/mat.png)
Mathematics, 11.12.2020 08:10
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/istoriya.png)
History, 11.12.2020 08:10