A wave is a rhythmic movement that carries energy through space or matter.
Answer:
Below :)
Explanation:
It is the powerhouse of the cell and creates chemical energy.
B, this would balance to a negative charge
Answer:
1.3m/s²
Explanation:
Given values in the first part: acceleration a, time t₁:
1) velocity v₀ 
2) height h₀ 
Given values in the second part: acceleration -g, time t₂:
3) height h 
Combining equations 1,2,3 and setting h to zero:
Solve for a with t₁ = 4s and t₂=2.1s:
The atoms of a molecule can vibrate in many waysthese are
called the normal modes of vibration. The normal modes have different excitation
energies so the Raman spectrum will consist of more than one line. The number
of normal modes is easily deduced; if the number of nuclei in the molecule is
N, then the total number of degrees of freedom (i.e., the number of coordinates
required to specify the positions of all of the nuclei) is 3N. Of these, three
account for translation of the molecule as a whole and three more for its
rotation. So the third is 314 nm
