During the launch from a board, a diver's angular speed about her center of mass changes from zero to 6.90 rad/s in 250 ms. her rotational inertia about her center of mass is 12.0 kg·m2.
a. during the launch, what was the magnitude of her average angular acceleration?
b. during the launch, what was the magnitude of the average external torque on her from the board?

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)

Which component of the earth’s atmosphere is decreased due to photosynthesis?

What is the coldest temperature ever recorded in san antonio?