Part 1: 1. Select a suitable initial length and mass for the pendulum (for which the
pendulum does not swing too fast or too slow) for example 30 cm and 1.0 kg.
2. Start by displacing the pendulum through a small angle (less than 10°) then
release it.
3. Complete the table below.

Suppose you use a machine that gives you a mechanical advantage of 2 to achieve an output force of 30newtons what must the input force be

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)

Describe uniform velocity and variable velocity in short