Answer:
Explanation:
I = Moment of inertia of sphere =
M = Mass of sphere = 29 kg
R = Radius of sphere = 0.5 m
T = Time taken for one revolution = 0.5 s
= Angular velocity =
The rotational angular momentum of the sphere is .
Answer:
Option (a), (d) are correct.
Explanation:
Frequency, f = 220 Hz
Resonant frequency = 660 Hz
The next frequency of stopped organ pipe is
2f, 3 f, 4 f ....
= 2 x 220 , 3 x 220 , 4 x 220 ....
= 440 Hz, 660 Hz, 880 Hz
So, the option (a) is correct.
The next resonant frequency of open organ pipe is
3 f, 5 f,...
= 3 x 220, 5 x 220 , ..
= 660 Hz, 1100 Hz,...
So, option (d) is correct.
It's B because it talks about if it harms people. That would be an example of a medical/ethical issue.
Answer:
D. Community members, teachers
Explanation:
The Highscope curriculum encourages community members to have a very active role in the learning of each child, helping in their development. The activities are child-initiated and guided by parents and community members in general, having a role of partners, contrary to the role that they traditionally had as supervisors.
It is the energy an object has because of its motion.