The table below shows information about pairs of charged spheres. In which pair do the spheres exert the greatest electrical force on each other?

Hey student studies gravity using objects that have the same mass which two objects have the greatest gravitational force acting between them a. 100kg 1.0m 100kg b. 100kg 2.0m 100kg c. 100kg 2.0m 100kg big d. 100kg big 3.0m 100kg big

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?

What sort of waves exhibit the doppler effect?