If the force between two fixed charged spheres is f and you triple the charge on one sphere and also triple the distance between the spheres, what fraction/multiple of original force of attraction is now between the two spheres?

Astudent is working in the lab to determine how time affect impulse the student keeps the force the same in each row but changes impact the time some data is shown witch trial has the greatest a student is working in the lab to determine how time affect impulse the student keeps the fours the same in each row but change is the impact time some data shown witch trial has the greatest impulse

If a substance is in the gas phase, which of qualities of the gas will stay constant? a: volume b: mass c: shape d: position of particles

Hydrogen and helium are both members of?