Which of the following processes can you infer is occurring in the sun, given its position on the Hertzsprung-Russell (H-R) diagram?

How would you place two electrons on a sphere of radius r so that the electrostatic potential energy is minimized. how would you place three electrons to solve the same problem.

Which example has gravitational potential energy? a.a horse slowing down from a run b.an apple about to fall from a tree branch c.a bicycle being pedaled down a horizontal path d.beaker sitting on the floor

Work out sian speed for the first 30 minutes of her journey. give your answer in km/h.