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svet-max [94.6K]
3 years ago
12

Which statement is true about the difference between calcium carbonate and calcium oxide?

Physics
1 answer:
Kay [80]3 years ago
7 0
Kalsium Karbonat is true


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4 years ago
The equipotential surfaces surrounding a point charge are concentric spheres with the charge at the center. If the electric pote
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Answer:

1.06 m

Explanation:

Since the charge is at the centre of two concentric spheres, we use the formula for electric potential due to a point charge. V = kq/r. Let r₁ be the radius of the sphere with potential, V₁ = 200 V and  r₂ be the radius of the sphere with potential, V₂ = 82.0 V. From V = kq/r, r = kq/V. So that r₁ = kq/V₁ and r₂ = kq/V₂. The magnitude of the difference r₁ - r₂ is the distance between the two surfaces. q the charge equals 1.63 × 10⁻⁸ C

r₂ - r₁ = kq/V₂ - kq/V₁ = kq(1/V₂ - 1/V₁) = 1.63 × 10⁻⁸ × 9 × 10⁹ (1/82 -1/200) m =  1.63 × 10⁻⁸ × 9 × 10⁹ (0.0122 - 0.005) = 1.63 × 10⁻⁸ × 9 × 10⁹(0.0072) m = 1.06 m

The distance between them is 1.06 m

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3 years ago
What type of properties would a scientist need to know to correctly place in new element into a group?
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Placing elements into columns, groups, rows and periods that share certain properties. properties such as gas, solid and liquid determine an element physical state at room temperature. 
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A wave has a wave length of 20mm and a frequency of 5 hertz. What is the speed?
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Answer:

Hello todays answer should be False i am sorry if i am incorrect-Lucy

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