Acar travels 60 km in the first 2 hours and 68 km in the next 2 hours. what is the car’s average speed?

Arollercoaster car at the top of a hill has potential energy kinetic energy chemical energy light energy

Design techniques and materials that reduce the negative environmental impact of a structure are referred to as

What are the first two quantum numbers for the electrons located in subshell 4d? what are the first three quantum numbers for the electrons located in subshell 2s? how many electrons can be held in a sublevel l = 3? how many electrons can be held in the energy level n = 4? how many electrons in an atom can share the quantum numbers n = 4 and l = 3?