For a neutral atom number of electrons equals number of protons, in other for the net charge of the atom to be zero...
no. of electrons = 12
Answer: C
C. Place plastic around the metal wires, because electric charges
hardly move in plastic.
D because weight is not a constant, however; Matyer is a constant
Answer:
A. 5.600 m
B. 5.800 s
C. 0.966 m/s
D. 0.315 m
Explanation:
A. The wavelength is the distance between 2 crests, which is 5.600 m
B. Period of the wave is the time for the wave to complete 1 circle (highest point to next highest point). Since it takes 2.9s to travel from highest point to lowest point, it would take another 2.9 to travel from lowest point to the next highest point. So the total time is 2.9 + 2.9 = 5.8 s,
C. The wavespeed is wavelength over unit of time:
5.6 / 5.8 = 0.966 m/s
D. The amplitude would be half the length of highest point to lowest point, which is 0.63 / 2 = 0.315 m
