How long will it take a rocket traveling at 8 km/s to reach 20 km? (please include the equation)

Acircle has a circumference of 28.36 units what is the diameter of the circle

Sawsan recorded the favorite sport of students at her school. she surveyed 200 students. how many students chose tennis?

Agroup of student volunteers participates in a study designed to assess several behavioral interventions for improving output in a repetitive task. prior to the beginning of the study, all volunteers unknowingly observed, and their output is measured. at the beginning of the study, prior to any intervention, the volunteers perform the same task under the observation of a study administrator, and their overall output increases. which of the following terms describes this phenomenon? a. simpson's paradox b. hawthorne effect are d. novelty effect d. pygmalion effect e. observer-expectancy effect