A car has a mass of 1500 kg. It is traveling at a speed of 0.52 m/s. What is the kinetic energy of the car? a.202.8 J
b.202.8
c.390 J
d.390

If steel is more dense that lake water, why can a boat float

An object's buoyant force and weight mean the same thing.a. trueb. false

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?