A satellite moves in a stable circular orbit with speed v at a distance r from the center of a planet. For this satellite to move in a stable circular orbit a distance 2r from the center of the planet, the speed of the satellite must be:.

In the image, layer a is the topmost layer. layer c contains fossils from the precambrian era. layer b contains dinosaur fossils, and layer a contains fossils of mammals. which two statements are supported by this evidence? 1. mammals lived before the precambrian era. 2. dinosaurs and mammals existed in the precambrian era. 3. dinosaurs evolved after precambrian organisms. 4. precambrian organisms evolved after dinosaurs. 5. precambrian organisms were the first life-forms to become fossilized, according to this sample.

The press is free to say whatever they want about whomever they want, regardless of whether they know it’s true. true false

Aggregation is the process of all of your data. a. gathering b. analyzing c. collecting d. observing