Answer:
law of conservation of mass
Explanation:
self explanatory
Answer:
element
Explanation:
an element is something made up of only one type of atom
The correct answer is b. bimolecular
Answer:
Frequency, f = 0.6 Hz
Explanation:
We have,
Number of waves passing through a point are 3
Time for which the waves are passing is 5 seconds
It is required to find the frequency of a wave. The frequency of a wave is defined as the no of waves per unit time. So,

So, the frequency of a wave is 0.6 Hz.