And astronomer uses a telescope to observe a star. She observes that the color of the star is similar to the color of the sun. Therefore she infers that the star in the sun have similar sizes and surface temperatures .using this info .what can the astronomer conculde about the star

What is work? how much work is done to move an object 0 meters?

Which feature indicates that mars resides in the inner region of the solar system

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.