Ahelicopter lifts a 66 kg astronaut 15 m vertically from the ocean by means of a cable. the acceleration of the astronaut is g/11. how much work is done on the astronaut by (a) the force from the helicopter and (b) the gravitational force on her? just before she reaches the helicopter, what are her (c) kinetic energy and (d) speed?

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)

The respiratory system removes oxygen and water from the body. select the best answer from the choices provided t f

Which of these activities increases the amount of carbon in the atmosphere?