Two planets orbit a distant star. one planet has a semi-major axis of 10 au and a period of 10 years. the second planet has an orbit which is highly eccentric. at closest approach (called periastron) it is 1 au from the star, while its maximum distance from the star (called apastron) is 19 au. draw, approximately to scale, the orbits of the two stars about the parent star. what is the orbital period of the second planet?

Acounterculture is composed of a group of people who the dominant culture.

Astudent conducts an experiment to see how music affects plant growth. the student obtains four identical plants. each one is potted in the same type of soil and receives the same amount of sunlight and water each day. plant a listens to classical music for three hours each day. plant b listens to rock music for three hours each day. plant c listens to country music for three hours each day. plant d does not listen to any music at all. 2. based on the experiment in the scenario, which visual aid would be most in showing the change in the plants' heights over time? a. a pie chart b. a line graph c. a timeline d. a bar graph

According ti the following map, what are the most common mineral resources found in the united states?