Earth's two innermost layers make up only one-sixth of Earth's volume, but they contain more than one-third of its mass. The reason for this phenomenon is that these layers are denser
than the others.

When many atoms are split in a chain reaction, a large explosion occurs. this is an example of what type of energy conservation

The discovery of the electron as a subatomic particle was a result of

The magnitude of the magnetic field at a certain distance from a long, straight conductor is represented by b. what is the magnitude of the magnetic field at twice the distance from the conductor? a. at twice the distance, the magnitude of the field is 4b. b. at twice the distance, the magnitude of the field is 2b. c. at twice the distance, the magnitude of the field is b/2.d. at twice the distance, the magnitude of the field is b/4.e. at twice the distance, the magnitude of the field remains equal to b.