Astronomers on planet Xearth have made several remarkable discoveries. After inventing the telescope, they quickly discovered a new planet in their solar system, Xearth, that is very much like Earth. The planet Xearth orbits its star in a nearly circular path, with an average distance of 150 million kilometers (1 AU), a period of one Earth year, and a solar day that lasts 24 hours. But unlike Earth, there weren’t any other known planets in the solar system…until now. Moments after the sun set below the horizon, three astronomers on Xearth happened to focus their telescopes at the zenith of the evening sky, all seeing the same new planet. In their excitement, the astronomers race to publish their discoveries. The first astronomer claims that, by her calculations, the newly discovered planet orbits their sun with a radius of 50 million kilometers (0.33 AU). The second astronomer says that, by her calculations, the planet in fact orbits their sun with a radius of 300 million kilometers (2 AU). The third astronomer disagrees with the other two — by her calculations, the planet has a very similar orbit to Xearth, with a radius of 150 million kilometers (1 AU). Clearly only one of them is correct. Which astronomer should we believe? Justify your answer.

answer: i'm not sure which is which for i get confused on it all the time but i can tell you that the answer lies with the convex and concave devices. i hope this you. have a good day and best of luck to you!

explanation:

so here is the information for current research:

-nrel's geothermal analysts, scientists, and engineers perform a full range of research from developing advanced methods of locating and accessing geothermal resources to exploring innovative technologies to extract and produce clean energy from the heat of the earth

and here is the information for the technology of geothermal energy:

-it's clean and sustainable

-resources of geothermal energy range from the shallow ground to hot water and hot rock found a few miles beneath the earth's surface, and down even deeper to the extremely high temperatures of molten rock called magma

-almost everywhere, the shallow ground or upper 10 feet of the earth's surface maintains a nearly constant temperature between 50° and 60°f (10° and 16°c)

-geothermal heat pumps can tap into this resource to heat and cool buildings

-a geothermal heat pump system consists of a heat pump, an air delivery system (ductwork), and a heat exchanger-a system of pipes buried in the shallow ground near the building

-in the winter, the heat pump removes heat from the heat exchanger and pumps it into the indoor air delivery system

-in the summer, the process is reversed, and the heat pump moves heat from the indoor air into the heat exchanger

-the heat removed from the indoor air during the summer can also be used to provide a free source of hot water

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

-reverse card

i think the answer is tomato juice? not entirely sure though