Answer
a) charge of the sodium ion is,
q = n e
q = 2.68 x 10¹⁶ x 1.6 x 10⁻¹⁹
q = 4.288 x 10⁻³ C
charge of the chlorine ion is,
q' = n e
q' = 3.92 x 10¹⁶ x 1.6 x 10⁻¹⁹
q' = 6.272 x 10⁻³ C
the current



b) positive ion moves toward negative electrode hence direction of will be in the direction toward negative electrode.
Answer:
v(t) = 27 units
Explanation:
The function s(t) represents the position of an object at time t moving along a line such that,

and

We need to find the average velocity of the object over the interval of time [2,6]. The velocity of the object is equal to the total distance divided by time. It is given by :


v(t) = 27 units
So, the average velocity of the object is 27 units. Hence, this is the required solution.
Answer:
6.96 s
Explanation:
The period of a simple pendulum is given by:

where
L is the length of the pendulum and g the acceleration due to gravity.
In this problem, we have a pendulum with length L = 2.00 m, while the acceleration due to gravity is 1/6 that of the earth:

So, the period of the pendulum on the moon is

Explanation:
The difference between a seismograph and a Seismogram is that:
a Seismograph is referred to a tool or instrument used in measuring the magnitude or effect of an earth quake
While
Seismogram is a type of output report or data that is generated out of a seismograph.
So in summary, a Seismograph is an instrument or tool while Seismogram is an output data generated from the usage of a seismograph.
Boyle's law states:
pV = C, where p = pressure, V = volume, C = constant.
Therefore,
p1V1 = p2V2
And the,
p2 = p1V1/V2
p1 = 512 kPa
V1 = 5l
p2 =?
V2 = 4l
Therefore,
p2= 512*5/4 = 640 kPa