1 kg air in a piston-cylinder assembly is heated at constant pressure, resulting the expansion of the volume. the initial temperature of the air was 300 k, and the air temperature becomes 500 k after the expansion. what is the boundary work done by the air

To create electromagnetic induction, which of the following has to move? a. a wire b. a magnet c. a transformer d. either a or b

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)

An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?