Figure 4.4 shows three wave crests moving to the right. When the crest of wave A passed point P, a watch reads 0.00 seconds. When the crest of wave B passed point P, a watch reads 10.00 seconds. What is the period of the wave?

period = 10.00 s, frequency = 0.1 Hz

Explanation:

The period of the wave T, is the time it takes the wave to move between two successive crests. Since wave A passes point P at 0.00 seconds and  wave B passes point P at 10.00 seconds, it completes a cycle of the wave and the period, T is 10.00s - 0.00 s = 10.00 s.

So, the period of the wave is T = 10.00 s

The frequency, f = 1/T = 1/10.00 s = 0.1 Hz

the nitrogen cycle provides nitrogen to the ecosystem from the atmosphere, ground and oceans. nitrogen is an important component of complex molecules such as amino acids and nucleotides, which lead to the creation of proteins and dna, the building blocks of all life. plants absorb nitrogen in the form of ammonium, nitrate ion and, on rare occasions, as amino acids. animals receive nitrogen necessary for biological processes from feeding on living or dead organic matter.