Ashell of mass m is fired with speed vo at an angle a up from horizontal. at the top of its arc the ball piece plummeting straight explodes into two pieces of equal down at her at a the ground mass. an observer on sees one speed 2vo and begins to scream and to run due west at 22km/hour. (a) when does the piece mentioned above hit the ground? (b) immediately after the explosion, what is the velocity of the other piece? (c) how much work is done by gravity (d) how far does the woman run before she stops to tweet 'omg'? on the other piece before it hits the ground?

Will you chech and finish these for me, because i am stumped with them.

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)

Asatellite component is in the shape of a cube with 10cm edges, has an evenly distributed mass of 2 kg and one bolt hole at each of four corners. if the maximum predicted random vibration environment is 10 grms, what bolt size would be a good choice for restraint? what other factors might drive bolt size besides force/stress?