Choose the word that best completes each sentence. Plants are
. They make their own food.

Animals are
. They consume other organisms for food.

Which is not true about oxygen-17 and oxygen-18?

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?

You throw a small rock straight up from the edge of a highway bridge that crosses a river. the rock passes you on its way down, 7.00 s after it was thrown. what is the speed of the rock just before it reaches the water 28.0 m below the point where the rock left your hand? ignore air resistance.