![subject](/tpl/images/cats/fizika.png)
Physics, 15.04.2020 03:19 kenziepickup
A student sits on a rotating stool holding two 5 kg objects. When his arms are extended horizontally, the objects are 1.1 m from the axis of rotation, and he rotates with angular speed of 0.73 rad/sec. The moment of inertia of the student plus the stool is 2 kg m^2 and is assumed to be constant. The student then pulls the objects horizontally to a radius 0.31 m from the rotation axis.
(a) Calculate the final angular speed of the student. Answer in units of rad/s.
(b) Find the kinetic energy of the student before and after the objects are pulled in.
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 12:20
Aball with a mass of 275 g is dropped from rest, hits the floor and rebounds upward. if the ball hits the floor with a speed of 2.40 m/s and rebounds with a speed of 1.70 m/s, determine the following. (a) magnitude of the change in the ball's momentum (let up be in the positive direction.)
Answers: 1
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/fizika.png)
Physics, 23.06.2019 03:20
If you divide a speed in miles per minute by 60, you get the same speed expressed in miles
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 23.06.2019 04:31
A90db sound wave strikes an eardrum whose area is 5.0×10^-5m^2. how much energy is absorbed by the eardrum per second
Answers: 1
You know the right answer?
A student sits on a rotating stool holding two 5 kg objects. When his arms are extended horizontally...
Questions
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 30.10.2019 02:31
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/en.png)
English, 30.10.2019 02:31
![question](/tpl/images/cats/mat.png)
Mathematics, 30.10.2019 02:31
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 30.10.2019 02:31
![question](/tpl/images/cats/mat.png)
Mathematics, 30.10.2019 02:31
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 30.10.2019 02:31
![question](/tpl/images/cats/mat.png)
Mathematics, 30.10.2019 02:31
![question](/tpl/images/cats/mat.png)
Mathematics, 30.10.2019 02:31
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 30.10.2019 02:31
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 30.10.2019 02:31