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Papessa [141]
4 years ago
6

Which example has only potential energy and no kinetic energy? a roller coaster zooming down a hill a child riding their bike a

bird flying from a tree a ball sitting on a shelf
Chemistry
2 answers:
Paladinen [302]4 years ago
6 0

Answer: a ball sitting on a shelf

Explanation:

Kinetic energy is the energy possessed by an object by virtue of its motion.

Potential energy is the energy possessed by an object by virtue of its position.

a)  a roller coaster zooming down a hill possess kinetic energy as it is in motion.

b) a child riding their bike possess kinetic energy as it is in motion.

c) a bird flying from a tree possess kinetic energy as it is in motion.

d) a ball sitting on a shelf does not possess kinetic energy as it is not in motion and possess potential energy only.

Thus a ball sitting on a shelf has only potential energy and no kinetic energy

ollegr [7]4 years ago
3 0
D) A ball sitting in a shelf
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how is the process of neutralization reaction like the procesd of mixing white and black paints to get gray
devlian [24]

Answer:

Acid neutralizes base to form salt and water while white colour neutralizes black colour to form grey colour.

Explanation:

Neutralization is simply the process whereby an acid and a base are mixed to produce salt and water. Now, this reaction also involves the mixing of the hydrogen ions of the acid and hydroxide ions of the base to form the salt and water. It is similar to mixing 2 paints to form another colour in that in the neutralization reaction 2 compounds are mixed to neutralize each other to form another compound while in mixing black and white to form grey the two colors are mixed together and thereby neutralized to form another colour which is grey.

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Explanation:

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A precipitate of calcium carbonate is formed when an aqueous solution of sodium carbonate reacts with aqueous calcium chloride.
Monica [59]

Answer:

Na_{2}CO_{3}(aq) + CaCl_{2} (aq)\rightarrow 2NaCl (aq) + CaCO_{3}(s)

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