18. An airplane with a weight of 11000 N cruises at 180 km/h in level flight 2300 m above the ground. How much lift is acting on the plane? 19. How much net force is produced by a 30.0 N force and a 20.0 N force under the following situations:

Explain to someone who knows nothing about fossils the study of invertebrate paleontology and how it scientists understand the history of the earth. be sure your explanation contains a minimum of two complete sentences.

Why should seat belts not be mandatory quick plz

Which lists the fundamental forces in order, from strongest to weakest? strong nuclear, weak nuclear, electromagnetic, gravitational strong nuclear, electromagnetic, weak nuclear, gravitational gravitational, weak nuclear, electromagnetic, strong nuclear electromagnetic, gravitational, strong nuclear, weak nuclear