Planet x rotates in the same manner as the earth, around an axis through its north and south poles, and is perfectly spherical. an astronaut who weights 943.0n on the earth weights 915.0n at the north pole of planet x and 850.0n at its equator. the distance from the north pole to the equator is 18,850 km., measured along the surface of planet x.

(a) how long is the day on planet x?
(b) if a 45, 000kg satellite is placed in a circular orbit 2000km above the surface of planet x, what will be its orbital period.

Arope has one end tied to a vertical support. you hold the other end so that the rope is horizontal. if you move the end of the rope back and forth with a frequency of 4 hz, the transverse wave you produce has a wavelength of 0.5 m. what is the speed of the wave in the rope?

1. when conducting a test on what kind of music increases the growth of plants, all of the following would fail to meet to fair test standard except (1 point) using different kinds of plants. giving some plants more water than others. exposing the plants to different types of music. using nutrient-rich soil for one and lesser soil for others. 2. engineering uses scientific thinking to solve real-world problems. (1 point) true false 3. what does it mean to test a hypothesis? (1 point) pass a quiz on other scientists’ results analyze only the results from scientific sources not make assumptions about how an experiment will turn out see if the results of an experiment are what the scientist predicted

Why does some plastic stick to your skin?