The same force f is applied to the edge of two hoops. the hoops have the same mass, although the radius of the larger hoop is twice that of the smaller one. the entire mass of each hoop is concentrated at its rim, so the moment of inertia is i -mr2, where m is the mass and r is the radius. which hoop has the greater angular acceleration, and how many times as great is it compared to that of the other hoop?
the larger hoop; two times as great.
the smaller hoop; two times as great.
the smaller hoop; four times as great.
the larger hoop; four times as great.
both have the same angular acceleration.
Answers: 1
Another question on Physics
Physics, 21.06.2019 19:40
Abird sitting high in a tree is an example of what type of wnergy
Answers: 2
Physics, 22.06.2019 18:00
A4.0-cm tall light bulb is placed a distance of 32.0 cm from a concave mirror having a focal length of 16.0 cm. determine the image distance
Answers: 1
Physics, 22.06.2019 19:30
Visualize the problem and identify special cases first examine the problem by drawing a picture and visualizing the motion. apply newton's 2nd law, ∑f⃗ =ma⃗ , to each body in your mind. don't worry about which quantities are given. think about the forces on each body: how are these consistent with the direction of the acceleration for that body? can you think of any special cases that you can solve quickly now and use to test your understanding later? one special case in this problem is if m2=0, in which case block 1 would simply fall freely under the acceleration of gravity: a⃗ 1=−gj^.
Answers: 1
Physics, 22.06.2019 21:50
Which of the following is part of the explanation or description of electromagnetic waves? (select all that apply) a. electrically charged molecules in a medium transfer their energy to nearby electrically charged molecules. b. a changing electric field causes a changing magnetic field. c. magnetic molecules in a medium transfer their energy to nearby magnetic molecules. d. a changing magnetic field causes a changing electric field.
Answers: 3
You know the right answer?
The same force f is applied to the edge of two hoops. the hoops have the same mass, although the rad...
Questions
Mathematics, 27.10.2020 16:00
History, 27.10.2020 16:00
English, 27.10.2020 16:00
Physics, 27.10.2020 16:00
Mathematics, 27.10.2020 16:00
Health, 27.10.2020 16:00
