12. Why can two stars have the same color but have different luminosities?
a. One star ha...
Physics, 23.05.2020 21:59 jesusdelao
12. Why can two stars have the same color but have different luminosities?
a. One star has a higher surface temperature
b. One star is a much larger size
10. The star with the lowest luminosity is dimmest because of its surface temperature or size?
a. Surface temperature
b. Size
Answers: 1
Physics, 22.06.2019 05:10, zionnahl
Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.
Answers: 3
Physics, 22.06.2019 12:00, jazz8224
The sun’s mass is 2.0×10^ 30 kg, its radius is 7.0×10 5 km, and it has a rotational period of approximately 28 days. if the sun should collapse into a white dwarf of radius 3.5×10 3 km, what would its period be if no mass were ejected and a sphere of uniform density can model the sun both before and after?
Answers: 3
Mathematics, 25.06.2020 01:01
Mathematics, 25.06.2020 01:01
Mathematics, 25.06.2020 01:01
Mathematics, 25.06.2020 01:01
Mathematics, 25.06.2020 01:01