A bungee jumper with a weight of 613 N leaps off a bridge. He is in free fall for a distance of
22.6 m before the cord begins to stretch. How
much work, in kilojoules, does the force of gravity
do on the jumper before the cord begins to
stretch?

If a balloon is taken outside on a very cold day, what will occur?

Why are graphs useful when interpreting data

Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?