Ascientist studying earths magnetic field found that at hot springs arkansas her compass pointed 5 degrees east of true north. in durango, colorado she took another reading and found that her compass pointed 14 degrees east of true north.

An atom of sodium-23 (atomic number = 11) has a positive charge of +1. give this information, how many electrons does it have? how many proteins and neutrons does this atom have

Why are pipes bursting in the in extremely cold weather?

The human eye contains a molecule called 11-cis-retinal that changes shape when struck with light of sufficient energy. the change in shape triggers a series of events that results in an electrical signal being sent to the brain that results in vision. the minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 kj/mol.