(1) A wooden block with a mass of 700 g is moving east with a constant velocity of 8 m/s when it is struck by a 20 g bullet moving west with a velocity of 625 m/s. The bullet strikes the block and goes through it. If the bullet
emerges from the block with a velocity of 470 m/s west, determine the following:
(i) the displacement of the block from the point of impact and
(ii) the time required for the block to stop after impact.
(All masses are conserved and the coefficient of friction of the wooden block is 0.21)

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)

Gasoline comes from petroleum, which is made from ancient living things. petroleum, therefore, contains a type of energy. a. heat b. nuclear c. biological d. chemical potential

Una carga puntual de 3 x 10-6 c se coloca a 12 cm de una segunda carga puntual de - 1,5 x 10-6 c. calcular la magnitud fuerza eléctrica entre las cargas