-
Home
- College physics for ap® courses
- Rotational motion and angular
- Dynamics of rotational motion:
Test prep for ap courses
A piece of wood can be carved by spinning it on a motorized lathe and holding a sharp chisel to the edge of the wood as it spins. How does the angular velocity of a piece of wood with a radius of 0.2 m spinning on a lathe change when a chisel is held to the wood's edge with a force of 50 N?
- It increases by 0.1 N•m multiplied by the moment of inertia of the wood.
- It decreases by 0.1 N•m divided by the moment of inertia of the wood-and-lathe system.
- It decreases by 0.1 N•m multiplied by the moment of inertia of the wood.
- It decreases by 0.1 m/s
2 .
Got questions? Get instant answers now!
A Ferris wheel is loaded with people in the chairs at the following positions: 4 o'clock, 1 o'clock, 9 o'clock, and 6 o'clock. As the wheel begins to turn, what forces are acting on the system? How will each force affect the angular velocity and angular momentum?
Got questions? Get instant answers now!
A lever is placed on a fulcrum. A rock is placed on the left end of the lever and a downward (clockwise) force is applied to the right end of the lever. What measurements would be most effective to help you determine the angular momentum of the system? (Assume the lever itself has negligible mass.)
- the angular velocity and mass of the rock
- the angular velocity and mass of the rock, and the radius of the lever
- the velocity of the force, the radius of the lever, and the mass of the rock
- the mass of the rock, the length of the lever on both sides of the fulcrum, and the force applied on the right side of the lever
Got questions? Get instant answers now!
You can use the following setup to determine angular acceleration and angular momentum: A lever is placed on a fulcrum. A rock is placed on the left end of the lever and a known downward (clockwise) force is applied to the right end of the lever. What calculations would you perform? How would you account for gravity in your calculations?
Got questions? Get instant answers now!
Consider two sizes of disk, both of mass
M . One size of disk has radius
R ; the other has radius 2
R . System A consists of two of the larger disks rigidly connected to each other with a common axis of rotation. System B consists of one of the larger disks and a number of the smaller disks rigidly connected with a common axis of rotation. If the moment of inertia for system A equals the moment of inertia for system B, how many of the smaller disks are in system B?
- 1
- 2
- 3
- 4
(d)
You are given a thin rod of length 1.0 m and mass 2.0 kg, a small lead weight of 0.50 kg, and a not-so-small lead weight of 1.0 kg. The rod has three holes, one in each end and one through the middle, which may either hold a pivot point or one of the small lead weights.
Got questions? Get instant answers now!
Section summary
Questions & Answers
summarize halerambos & holbon
the Three stages of Auguste Comte
what are agents of socialization
definition of sociology of education
Nuhu
shared beliefs, values, and practices
AI-Robot
What are the two type of scientific method
what are the scientific method of sociology
Man
the process wherein people come to understand societal norms and expectations, to accept society's beliefs, and to be aware of societal values
AI-Robot
scientific method in doing research
ogunniran
defimition of sickness in afica
Anita
list and explain the terms that found in society
list and explain the terms that found in society
Mukhtar
what are the agents of socialization
Antonio
Family
Peer group
Institution
Abdulwajud
I mean the definition
Antonio
ways of perceived deviance indifferent society
reasons of joining groups
SAM
to bring development to the nation at large
Hyellafiya
entails of consultative and consensus building from others
Gadama
World first Sociologist?
Abu
What is evolutionary model
Evolution models refer to mathematical and computational representations of the processes involved in biological evolution. These models aim to simulate and understand how species change over time through mechanisms such as natural selection, genetic drift, and mutation. Evolutionary models can be u
faruk
what are the modern trends in religious behaviours
shared standards of acceptable behavior by the group or appropriate behavior in a particular institution or those behaviors that are acceptable in a society
Lucius
that is how i understood it
Lucius
examples of societal norms
Diamond
Discuss the characteristics of the research located within positivist and the interpretivist paradigm
what is Industrialisation
Got questions? Join the online conversation and get instant answers!
Source:
OpenStax, College physics for ap® courses. OpenStax CNX. Nov 04, 2016 Download for free at https://legacy.cnx.org/content/col11844/1.14
Google Play and the Google Play logo are trademarks of Google Inc.