Galaxy a is located 200 million light-years from earth, while galaxy b is located 600 million light-years from earth. according to the hubble law, how does the motion of the two galaxies compare?
a. galaxies a and b are moving away from earth at the same rate.
b. galaxy a is moving away from earth three times as fast as galaxy b.
c. galaxy b is moving away from earth three times as fast as galaxy a.

The midpoints? a, b, and c are marked on the histogram. match them to the indicated scores. which? scores, if? any, would be considered? unusual?

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.

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?