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m_a_m_a [10]
3 years ago
10

At which point or points does the pendulum have the greatest kinetic energy?

Physics
2 answers:
deff fn [24]3 years ago
5 0

Answer:

At the bottom.

Explanation:

A pendulum possess two types of energies i.e. kinetic energy and potential energy. We know that a pendulum oscillates about its mean position. At both extreme points, it have zero kinetic energy and maximum potential energy. As it swings down, its potential energy gets converted to the kinetic energy.

As a result, it have zero potential energy and maximum kinetic energy at the bottom point. Hence, the pendulum have the greatest kinetic energy at the bottom.

Daniel [21]3 years ago
4 0

At the lowest point of its motion, kinetic energy is maximum and potential energy is minimum. This is where the velocity is a maximum. At the highest point of its motion, kinetic energy is minimum (i.e. zero) and potential energy is maximum.

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Answer:

B

Explanation:

Yes plastic is artficial

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3 years ago
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Acid mine drainage is:
Dahasolnce [82]

Answer:

Acid mine drainage is dissolved toxic materials wash from mines into nearby lakes and streams.

Explanation:

Acid mine drainage is the flow of acidic water with pH typically between 2 and 4, and high concentrations of other dissolved toxic materials from mines into nearby lakes and streams. It mainly occurs during metal sulfide mining, when the metal sulfide ore such as pyrite (FeS2) is exposed to water and oxygen from air to produce soluble iron and sulfuric acid.

Microorganisms, especially acidophile bacteria like Acidithiobacillus ferrooxidans grow by pyrite oxidation, i.e., oxidizing the Fe²⁺ in pyrite to Fe³⁺, which again react with pyrite and water to produce sulfuric acid. Then the acidic water flows into nearby water sources and reduces the pH value of water in those sources. As a result, heavy metals such as copper, lead, mercury, etc in other mineral ores also get dissolved into the water. The action of acidophile bacteria also increases the rate and degree of acid-mine drainage process.

The acid mine drainage causes water pollution and adversely affect the aquatic plants and animals. It also results in the contamination of drinking water, corrosion of infrastructures such as bridges, etc.

8 0
3 years ago
Which force is greater the earth’s pull on the moon or the moon’s pull on the earth
Vitek1552 [10]

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What must be true about two objects if heat is flowing between them?
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The objects must be different temperatures.

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Temperature is the degree of hotness or coldness of body. It is power by heat energy between two bodies.

Heat generally flows from a body at high temperature to one at low temperature. When thermal equilibrium is established and both bodies have the same temperature, heat will stop to flow.

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