1. Ling is doing an experiment with electric charges. She transfers 3 x 10 electrons onto a sphere. She then brings that sphere close to another fixed sphere that has a charge of +4.5 x 106 C, such that they are 20 cm apart. Calculate the magnitude of the force acting on the fixed sphere and its direction. 2. You are the intern at a new educational website for children. You have been given the job of responding to an email from a 12-year-old child in which they ask the following question: I have seen many videos from the International Space Station (ISS), such as this one involving Cmr. Chris Hadfield, astronauts, and objects are often seen "floating" around the ISS. This would imply they are weightless and do not have any gravity acting on them? Is this truly the case? Research this phenomenon and write a response to this child explaining what is happening in a way that they can understand