Why does a pendulum eventually stop swinging?

Answers

Answer 1

Answer: When we swing a pendulam, it swings back and forth but eventually it stops. This is due friction with air. It is also because the kinetic energy released by the pendulam is dissipated into the air.

Answer 2

Answer: it runs out of momentoum so it stops swinging

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Dale and Alex push on opposite sides of a couch. Dale pushes to the left witha force of 100 N, while Alex pushes to the right with a force of 175 N. If thecouch has a mass of 55 kg, what is the acceleration of the couch?O A. 5 m/s2 rightO B. 5 m/s2 leftO c. 1.4 m/s? rightO D. 1.4 m/s2 leftSUBMIT
a butterfly has a wingspan of 66mm and a height of 6cm which i greater its wingspan or its height
Thermal energy is transferred as heat from a warmer object to a cooler object until Select one: a. all of the energy from the hot object is transferred to the cold object. b. the temperature is the same in both objects. c. all of the energy from the cold object is transferred to the hot object. d. the thermal energy is converted into another type of energy such as light.
A chemical reaction occurs. Which of the following would indicate that energy is transformed during the reaction?

Which of the following is another term for a planned economy

Answers

The correct answer would be, Socialist system.

Socialist system is another term for a planned economy.

Explanation:

An economic system, in which the economy(including investment, capital and allocation of capital goods) is governed by a predefined economic and production plans, is called as the Planned Economy.

The system of planning in this economic system can either be centralized, decentralized or participatory.

This economic system is regulated by the Government. All decisions about the capital, lands, buildings, machinery, or other resources are taken by the government.

The production, prices, distribution, etc of the products or services are regulated centrally by the government.

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Answer:

Another term for planned economy is a socialist system.

What is the relashinship between the mass and size of a planet?

Answers

size is in relation to distance(how far across or around)mass is measuring how much there is, mass is related to both size and DENSITY, EX: A balloon has a large size but a tiny mass, compared to a bowling ball, which has a similar size but a much larger mass

Can Someone help me answer the question?

Answers

There must be a description of the ball and its environment,
somewhere earlier on the sheet where we can't see it. We
don't know what the conditions and environment are around
the ball as it moves downward. So I can only answer in the
most general way, and make up some scenarios.

If the ball is falling from an airplane, then it has to use some
of its energy to push air out of the way, and even then, it loses
some more energy as the air molecules scrape against its side.
This is all called 'air resistance'. It's a form of friction, the form that
takes energy away from anything that's moving through air.

If the ball is rolling across the lawn, then it takes some energy
to bend the blades of grass down along its path. That's why a
ball that's rolling anywhere on Earth always stops, although
Newton's laws of motion say that an object in motion always
keeps moving and doesn't stop.

Can someone help me on no. 6

Answers

Efficiency = (energy that does the job) / (total energy used)

= (45 J) / (120J)

I think you can handle the division.

Explain why the air we breathe and solids, such as steel and bronze, are solutions or homogeneous mixtures, just like salt water is ?

Answers

Answer:

Explanation:

There are two major types of mixtures; homogeneous and heterogeneous mixtures.

Homogeneous mixture is a mixture in which its constituent particles are evenly distributed throughout the mixture. Examples are steel, bronze and air (as stated in the question). While heterogeneous mixture is a mixture in which it's constituent particles are not evenly distributed throughout the mixture. Example includes sand and water solution.

Salt water is an homogeneous mixture because the percentage of salt in a sample of salt from a particular mixture is the same in every other sample (of the same volume) of the same mixture.

From the above, we can deduce that air is an homogeneous mixture because a sample of air (in a particular area) will contain the same constituent by proportion as another sample of air (in the same area). This means that the percentage of oxygen, nitrogen, carbon dioxide, water vapour, argon and other substances in one sample of the air will be equal to the percentage of this constituents in the other sample of the air.

Same can be said about steel and bronze. For steel, each gram of the same steel will contain the same percentage of carbon and iron. And also, each gram of the same bronze will contain the same percentage of copper, tin and other metals present.

For better understanding, let's consider an heterogeneous mixture. A mixture of sand and water solution cannot have the same proportion throughout, this is because sand particles in some samples (of a particular volume) of a particular mixture will be different from sand particles in some other samples (of the same volume) of the same mixture.

Because you can't physically see the difference.

Which has more inertia? A bowling ball or a whiffle ball? Why?

Answers

Bowling ball would be your answer since it has the most mass.

A wiffleball because it's smaller

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