On average, how many stars would we have to search before we would expect to hear a signal? assume there are 500 billion stars in the galaxy.

Complete the statement about memory improvement. ( )involves organizing and breaking down information into easier groups to expand capacity. rehearsal is the verbal repetition of information. these techniques are especially important for the improvement of ( ) memory.

When using the scientist method, which step comes last?

Astudent pushes a 60-n block across the floor for a distance of 10 m. how much work was done to move the block