In a well-known novel, a person travels around the world in 80 days. What is the approximate average velocity for the entire trip? (Note that Earth's circumference at the equator is 40,075km.)

What is a possible result of higher air temperature caused by global warming

Need only answer if you think you know it

Which magnetic property best describes a magnet’s ability to act at a distance? magnets are dipolar. magnets attract only certain objects. magnets have magnetic fields. magnets can transfer their properties to certain materials.