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bonufazy [111]
2 years ago
14

A 0.040 kg ball tied to a string moves in a circle that has a radius of 0.700 m. If the ball is accelerating at 43.2 m/s2, what

is the tangential velocity of the ball?
Chemistry
1 answer:
LekaFEV [45]2 years ago
3 0

Answer: 30.24 m/s

Explanation:

Got it right on test

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Uranus is said to be made of fluids. Its atmosphere is its surface
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. Give an example of a salt that is less soluble when the temperature increases
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cerium (iii) sulfate is less soluble

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What is the pH of a solution has a hydrogen ion concentration of 6.3 x 10–10 M? Show work
NISA [10]

Answer:

pOH = 4.8

pH = 9.2

Explanation:

Given data:

Hydrogen ion concentration = 6.3×10⁻¹⁰M

pH of solution = ?

pOH of solution = ?

Solution:

Formula:

pH = -log [H⁺]

[H⁺] = Hydrogen ion concentration

We will put the values in formula to calculate the pH.

pH = -log [6.3×10⁻¹⁰]

pH = 9.2

To calculate the pOH:

pH + pOH = 14

We will rearrange this equation.

pOH = 14 - pH

now we will put the values of pH.

pOH = 14 - 9.2

pOH = 4.8

7 0
3 years ago
What are acids? List few substances containing acid.
Gelneren [198K]
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  • <em><u>toothpaste</u></em><em><u> </u></em>
  • <em><u>vinegar</u></em><em><u> </u></em>
  • <em><u>baking</u></em><em><u> </u></em><em><u>soda</u></em><em><u> </u></em>
  • <em><u>soap</u></em><em><u> </u></em>
  • <em><u>ammonia</u></em><em><u> </u></em>

3 0
2 years ago
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The path around Lake Michigan downtown is approximately 18 miles. How many inches is it? ​
Scilla [17]
1,140,480 inches
Explanation:
Multiply 63,360 inches by the amount of miles you want.

This case:
63,360 inches x 18 miles = 1,140,480 inches
8 0
3 years ago
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