Static Electricity 1. One of the Mars Rover vehicles, Sojourner, collected red Martian dust on its wheels as it
rolled along. There is very little water on Mars, so it's not mud; it's actually dust. Explain, in
detail, why the dust clings to the wheels. Be sure to describe forces by name and mention
charging by induction, conducting, or rubbing, if it is appropriate. Also explain what atoms
on Mars must be composed of. (4 points)

An education expert is researching teaching methods and wishes to interview teachers from a particular school district. she randomly selects ten schools from the district and interviews all of the teachers at the selected schools. which type of sample did she use in this study? a)systematic sample b)probability sample c)stratified sample d)cluster sample

Read the paragraph below and answer the question that follows. "andy was asked to speak in a school assembly about a fundraising opportunity for a fellow student who had recently been diagnosed with leukemia. andy's stomach hurt and his hands were cold. "steady man," he thought. "you can do this. it's for tim. he needs our ." andy could picture the students wanting to get involved. it occurred to him now that he wasn't just giving a speech. he had something worthwhile to say. which strategies did andy use to reduce his apprehension? select all that apply." be prepared. use muscle relaxation techniques. get experience. think positively. focus on communicating to the audience.

After about 1000 b. c, some people in siberia meaning their lives wre bassed on herding animals. a. pastoral b. collective c. irrigate d. dalits