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Romashka-Z-Leto [24]
3 years ago
13

12)

Physics
1 answer:
Nataliya [291]3 years ago
5 0

Answer: b

Explanation: the two pieces will repel as both have obtained a static charge.

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Current passes through a solution of sodium chloride. In 1.00 s , 2.68× 10 16 Na + ions arrive at the negative electrode and 3.9
Lady bird [3.3K]

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

i = \dfrac{q}{t} + \dfrac{q'}{t}

i = \dfrac{4.288 \times 10^{-3}}{1} + \dfrac{6.272 \times 10^{-3}}{1}

i = 10.56 \times 10^{-3}

b) positive ion moves toward negative electrode hence direction of will be in the direction toward negative electrode.

5 0
3 years ago
The function​ s(t) represents the position of an object at time t moving along a line. Suppose s (2 )equals 146and s (6 )equals
sineoko [7]

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,

s(2)=146

and

s(6)=254

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)=\dfrac{s(6)-s(2)}{6-2}

v(t)=\dfrac{254-146}{6-2}

v(t) = 27 units

So, the  average velocity of the object is 27 units. Hence, this is the required solution.

5 0
3 years ago
The moon's gravity is one-sixth that of the earth. what is the period of a 2.00m long pendulum on the moon
erik [133]

Answer:

6.96 s

Explanation:

The period of a simple pendulum is given by:

T=2 \pi \sqrt{\frac{L}{g}}

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:

g' = \frac{g}{6}=\frac{9.8 m/s^2}{6}=1.63 m/s^2

So, the period of the pendulum on the moon is

T=2 \pi \sqrt{\frac{2.00 m}{1.63 m/s^2}}=6.96 s

3 0
3 years ago
What is the difference between a seismograph and a seismogram
Stella [2.4K]

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.

4 0
3 years ago
Boyle's law says that the volume of a gas varies inversely with the pressure. when the volume of a certain gas is 5l, the pressu
Mrac [35]
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
8 0
4 years ago
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