In the history of astronomy, which of the following is true? a. galileo galilei was a student of tycho brahe. b. johannes kepler built one of the first observatories. c. ptolemy argued that earth was the center of the universe. d. isaac newton was criticized for his work on the geocentric model.

Which of the following correctly describes the early view of catastrophism?

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?

In a set amount of time, a battery supplies 25j of energy to an electric circuit that includes two different loads. one of the loads produces 10 j of heat energy during this time interval. how much heat energy is produced by the second load in this time? explain your answer