Moss layer 001- 005 m 2. To calculate density you divide the mass by the volume. Frequency frequency density X class width.
While the helium atom is moving through space it sweeps out a collisional cylinder as shown above.
The position of nodes and antinodes is just the opposite of those for an open air column. An ideal vibrating string will vibrate with its fundamental frequency and all harmonics of that frequency. Relative abundance Total noof species A Total noof individual of all species recorded x100 4. This is called unequal class intervals.