Constellations are groups of stars that form patterns in the sky. even though planets also appear as lights in the sky just like stars, they are not included in constellations. why would planets never be included in constellations?

f. because planets move around in the sky and stars do not.

g. because planets are too close to earth to make patterns.

h. because stars are smaller and would be obscured by planets.

i. because stars are gaseous and planets are not gaseous.

sorry, i keep asking cause your explanations are awesome and i suck at science and global! but tysm for me!

Africtionless piston-cylinder contains 50 l of saturated liquid r-134a. the piston has a mass and an area resulting in an applied pressure of 500 kpa on the refrigerant. the refrigerant is now heated until its temperature rises to 70∘c. calculate the work (in kj) done during this process.

The chart shows the costs and shipping times for materials that a company needs to build a new product. which describes the best trade-off if the company needs to start building their product within the next two years? they should order the domestic materials because it is always best to choose the fastest shipping time. they should order the imported materials because it is always best to choose the lowest cost for materials. since the shipping time is longer, they should order the domestic materials because the additional cost is worth it to get the materials in time. even though the shipping time is longer, they should order the imported materials because they are less expensive and should arrive in plenty of time to build the product.

The pilot of a helicopter hovers at an altitude of 1200 feet over a park. the angle of depression to the base of a statue is 17 degrees. the angle of depression to the nearest park exit, in line with the statue, is 14 degrees. to the nearest foot, what is the distance from the statue to the exit?