Use the Law of Conservation of Energy to calculate and find the missing numbers. Assume the roller coaster with a mass of 1000 kg begins at the star with an initial velocity of 0 m/s.

What do you think car designers do if the damage caused by a crash test is too severe?

The freezing and boiling point of a substance changes as the air pressure around it changes. for example, at a lower air pressure (higher altitude) it is easier for water molecules to escape from liquid into the air. in a high altitude city such as denver, colorado compared to a sea-level city such as houston, texas, water

The frequency of the fundamental of the guitar string is 320 hz. at what speed v do waves move along that string?