Popular Study Materials from Astronomy 111 with Timmes

### The following diagrams all show the same star, but each shows a different planet orbiting the star. the diagrams are all scaled the same. (for example, you can think of the tick marks along the line that passes through the sun and connects the nearest and farthest points in the orbit as representing distance in astronomical units (au).) rank the planets from left to right based on their average orbital distance from the star, from longest to shortest. (distances are to scale, but planet and star sizes are not.)

### Based on current science which of the following is the most reasonable range for possible values of the number of habitable planets, nhp, in our galaxy?

### Each of the following diagrams shows a spaceship somewhere along the way between earth and the moon (not to scale); the midpoint of the distance is marked to make it easier to see how the locations compare. assume the spaceship has the same mass throughout the trip (that is, it is not burning any fuel). rank the five positions of the spaceship from left to right based on the strength of the gravitational force that earth exerts on the spaceship, from strongest to weakest.

### Drag each statement into the correct bin based on whether the motion requires the action of a net force. note: for the motions that are on earth (e.g., car, ball, elevator), ignore any effects of earth’s rotation or orbit.

### Rather than being a planet, Pluto is really just a large member of

### The following diagrams all show the same star, but each shows a different planet orbiting the star. the diagrams are all scaled the same. (for example, you can think of the tick marks along the line that passes through the sun and connects the nearest and farthest points in the orbit as representing distance in astronomical units (au).) rank the planets from left to right based on their average orbital distance from the star, from longest to shortest. (distances are to scale, but planet and star sizes are not.)

### Based on current science which of the following is the most reasonable range for possible values of the number of habitable planets, nhp, in our galaxy?

### Each of the following diagrams shows a spaceship somewhere along the way between earth and the moon (not to scale); the midpoint of the distance is marked to make it easier to see how the locations compare. assume the spaceship has the same mass throughout the trip (that is, it is not burning any fuel). rank the five positions of the spaceship from left to right based on the strength of the gravitational force that earth exerts on the spaceship, from strongest to weakest.

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