Some of the most energetic events in the universe occur when stars explode in an incredible release of energy known as a supernova. although every supernova is characterized by a sudden, intense brightening, the differences in types of progenitor stars and the mechanisms of detonation produce two distinct supernova types: type i and type ii. rank the following steps that lead to a type i supernova event in order of when they occur from first to last. rank the steps of the supernova mechanism from first to last.

Aball has an initial velocity of 3 m/s. if there is no friction, what is the highest it could roll?

Imagine that you have two balloons (or, better yet, actually inflate two balloons, if possible). create static electricity around one of the balloons by rubbing it against your hair or your sweater and then bring that balloon close to the other balloon, which has not been charged. try this with at least one other object—and for variety in the discussion, avoid using an object already described by your classmates. then, for your initial post to the discussion, answer the following questions: what happened with the two balloons?

When doing scientific research ,the sources used should be ?