Upward growth usually occurs when
a. high-rise buildings are available
b. spreading out is possible
c. resource conservation is unimportant
d. a limited amount of land is available

Can somebody explain to me how newton's 3rd law relates to momentum? ~ap physics 1

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.

Ineed the answer to question 1 , i’m desperate