50 POINTS Two charged objects are positioned 5 cm away from each other. Describe the change in the force between these two objects when:

(a) the charge on one of the objects is increased

(b) the distance between the objects is increased to 10 cm

(c) the charge on both of the objects is decreased

Please answer all 3

Suppose that recording station n is located 200 km north of the epicenter of an earthquake, and recording station s is located 100 km south of the epicenter of the same earthquake. which of the following statements would be true?

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.

How will the system respond to a temperature increase?