A delivery van drives for 30 minutes and travels 50 miles. The delivery van turns around and drives 20 miles in 15 minutes. The van waits at this location for 5 minutes. Turns around again and drives another 100 miles for 65 minutes.
What is the displacement?

If gases like carbon dioxide and methane make up less than 1% of the total atmosphere, why is it important for scientists to monitor changes in percentages of these gases?

Tafari worked one summer on a ship that set weather buoys in the ocean. he watched how one of the buoys moved in the water. describe which parts of the wave would cause the buoy to bob up and down. which wave property determined how fast the buoys bobbed in the water? he observed that when the wind blew harder, the ocean waves were larger, and the buoys moved away from the ship. what effect, if any, did the waves have on how far the buoys moved? explain your answer.

The material that keeps its new shape after it is stretched is called?