Which law states that the orbit of each planet is elliptical and that the sun is at one focus of each ellipse? a. kepler's first law b. kepler's second law c. kepler's third law d. newton's law of universal gravitation

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.

In what direction does an applied force move an object

The particles that are found in the nucleus of an atom are