Atrain travels 140 km in 2 hours and 30 minutes. what is its average speed?

Determine el momento angular de un rueda de 3000g moviendose a 10m/s con un radio de giro de 400cm

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?

How is sound is different from music how loundness od sound mention some ways to reduce