Which star do you think is the densest: Antares, Spica, or Polaris? please explain with details.

Antares

Explanation:

The star Antares is also called the red supergiant. Antares is more than ten thousand times brighter than the sun, but it is 37 million times farther, 600 light years from here. Antares occupies the 14th position in the ranking of the brightest stars and its fame comes from antiquity, when it was cited by the Egyptians, Persians and Arabs, among other peoples. Moreover, among the stars exposed in the question, Antares has the highest density, with a density value of 10/4 ^ 3 = 1.563E-1. The density of the other stars shown is: Spica: 10.25 / 7.4 ^ 3 = 2.529E-2 and Polaris: 7.5 / 30 ^ 3 = 2,778E-4

b.

hope this : )

  distance on the y-axis and time on the x-axis.

explanation:

the instantaneous velocity = change in position/time taken

the slope of the graph should give instantaneous velocity.

  slope of a graph = change in value of y -axis / change in values of x -axis

  comparing both the equations

    change in value of y -axis = change in position

  change in values of x -axis = time taken

so position values should be on the y axis and time values should be on the x axis.

distance on the y-axis and time on the x-axis.