Use this table of a school bus during morning pickups to answer the question. What is the average speed of the bus between 2.8 km and 4.2 km?

More solar radiation is absorbed by earth’s surface than by

Aprisoner is forced to go into one of three rooms, but he can choose which room. the first room is ablaze with fire. the second one is rigged with explosives that will go off as soon as he enters. the third contains a pair of lions who haven't eaten in years. which room should he choose to survive?

The diagram shows a boulder rolling down a hill into a valley and then up the opposite hill. at which position does the boulder have the greatest kinetic energy? ab c d