What is the average speed of an object that travels 50 meters in 2 seconds? select one: a. 100 m/s b. 25 m/s c. 50 m/s d. 2 m/s

Aray diagram for a refracted light day is shown. what does the dashed line represent

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.

If the textbook weighs 19.6 newtons on venus,what is the strength of gravity on venus?