The picture models how a pencil looks in a glass of water. The pencil looks this way because light waves bend as they travel from the pencil to the observer.

At what two locations in the picture do the light waves bend?

The terrestrial planets are characterized by having a a.) silicate core b.) iron-rich silicate core c.) iron-rich metallic core d.) none of these

During an experiment, readings for blood pressure in a persons body were found to be constant . however , when he measured by a different blood pressure cuff , the readings differed by 15 points for each reading. this difference indicates that the results are

Moving down the ramp from 6 meters to