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Dima020 [189]
3 years ago
9

Which is not true about the pH scale?

Physics
2 answers:
pochemuha3 years ago
4 0

Answer:

The pH scale was invented by Svante Arrhenius is false.

Explanation :

because the pH scale was invented by Soren Sorensen

tester [92]3 years ago
3 0
Hello school i points are the correct spelling.
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A tiger paces back and forth along the front of its cage, which is 8 m wide. The tiger starts from the right side of the cage, p
Black_prince [1.1K]

Answer:

The total distance is 24 m.

The tiger's resultant displacement is 8 m.

Explanation:

Given that,

Width of tiger= 8 m

Tiger starts from the right side of the cage,

Paces to the left side

\Delta x_{1}=+8\ m

Then, back to the right side,

\Delta x_{2}=-8\ m

finally, back to the left

\Delta x_{3}=+8\ m

We need to calculate the total distance covered

Using formula of distance

d= x_{1}+x_{2}+x_{3}

Put the value into the formula

d=8+8+8

d=24\ m

We need to calculate the tiger's resultant displacement

Using formula of displacement

D=\Delta x_{1}+\Delta x_{2}+\Delta x_{3}

Put the value into the formula

D=8+(-8)+8

D=8\ m

Hence, The total distance is 24 m.

The tiger's resultant displacement is 8 m.

3 0
3 years ago
Which force can either repel or attract objects?
stellarik [79]

Answer:

D. electromagnetic forces

Explanation:

7 0
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A potentiometer wire of length 1m and resistance 2Ω is connected in series with a variable resistance and 2V accumulator of negl
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Answer:

wire

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we need insulator to conduct the experiment

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Charges can be separated in an isolated system
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yes. can always be separated

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If you put a pencil in a cup of water, it looks as if it is broken and larger in the water. This is because light waves
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The light waves bend as it travels from the air into the water.

This phenomenon is called refraction of light waves.
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