If the sphere on the left is moved closer to the central cylinder and placed at a distance r/2 from the axis of rotation, what is the magnitude of the angular acceleration α of the modified system? assume that the rest of the system doesn't change.

Imagine you work as a consultant, and your daily job involves listening to the constructive criticism of others. as part of your job, you must listen to opposing viewpoints to make important decisions. in this activity, you are a consulting dam engineer. you must make a decision about four different dams; should they be repaired, taken down, or left alone? you will listen to contrasting opinions about what should be done with the dams before you make the final decision. as the consulting dam engineer, what do you decide to do with this dam? explain your reasoning. by making your decision, did you support the opinions of the mayor and/or the dam safety official? why or why not? (site 1)

Waves that cause the most damage during an earthquake are a. surface waves c. s waves b. p waves d. ocean waves

Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion