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Rachna

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Asked: October 28, 2020In: Class 9

What are the various energy transformations that occur when you are riding a bicycle?
Rachna
Added an answer on July 31, 2021 at 11:28 am
Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download. Please follow the link to visit website for first and second term exams solutions. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-11/

Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download.
Please follow the link to visit website for first and second term exams solutions.
https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-11/
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Asked: October 28, 2020In: Class 9

The potential energy of a freely falling object decreases progressively. Does this violate the law of conservation of energy? Why?
Rachna
Added an answer on July 31, 2021 at 11:27 am
Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download. Please follow the link to visit website for first and second term exams solutions. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-11/

Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download.
Please follow the link to visit website for first and second term exams solutions.
https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-11/
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Asked: October 28, 2020In: Class 9

A mass of 10 kg is at a point A on a table. It is moved to a point B. If the line joining A and B is horizontal, what is the work done on the object by the gravitational force? Explain your answer.
Rachna
Added an answer on July 31, 2021 at 11:27 am
Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download. Please follow the link to visit website for first and second term exams solutions. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-11/

Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download.
Please follow the link to visit website for first and second term exams solutions.
https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-11/
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Asked: October 28, 2020In: Class 9

Certain force acting on a 20 kg mass changes its velocity from 5 m s^–1 to 2 m s^–1. Calculate the work done by the force.
Rachna
Added an answer on July 31, 2021 at 11:27 am
Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download. Please follow the link to visit website for first and second term exams solutions. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-11/

Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download.
Please follow the link to visit website for first and second term exams solutions.
https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-11/
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Asked: October 28, 2020In: Class 9

A battery lights a bulb. Describe the energy changes involved in the process.
Rachna
Added an answer on July 31, 2021 at 11:26 am
Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download. Please follow the link to visit website for first and second term exams solutions. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-11/

Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download.
Please follow the link to visit website for first and second term exams solutions.
https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-11/
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Asked: October 28, 2020In: Class 9

An object thrown at a certain angle to the ground moves in a curved path and falls back to the ground. The initial and the final points of the path of the object lie on the same horizontal line. What is the work done by the force of gravity on the object?
Rachna
Added an answer on July 31, 2021 at 11:26 am
Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download. Please follow the link to visit website for first and second term exams solutions. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-11/

Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download.
Please follow the link to visit website for first and second term exams solutions.
https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-11/
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Asked: October 28, 2020In: Class 9

Define average power.
Rachna
Added an answer on July 31, 2021 at 11:26 am
Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download. Please follow the link to visit website for first and second term exams solutions. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-11/

Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download.
Please follow the link to visit website for first and second term exams solutions.
https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-11/
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Asked: October 28, 2020In: Class 9

A lamp consumes 1000 J of electrical energy in 10 s. What is its power?
Rachna
Added an answer on July 31, 2021 at 11:25 am
Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download. Please follow the link to visit website for first and second term exams solutions. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-11/

Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download.
Please follow the link to visit website for first and second term exams solutions.
https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-11/
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Asked: October 28, 2020In: Class 9

Define 1 watt of power.
Rachna
Added an answer on July 31, 2021 at 11:25 am
Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download. Please follow the link to visit website for first and second term exams solutions. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-11/

Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download.
Please follow the link to visit website for first and second term exams solutions.
https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-11/
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Asked: October 28, 2020In: Class 9

What is power?
Rachna
Added an answer on July 31, 2021 at 11:24 am
Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download. Please follow the link to visit website for first and second term exams solutions. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-11/

Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download.
Please follow the link to visit website for first and second term exams solutions.
https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-11/
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Rachna

What are the various energy transformations that occur when you are riding a bicycle?

The potential energy of a freely falling object decreases progressively. Does this violate the law of conservation of energy? Why?

A mass of 10 kg is at a point A on a table. It is moved to a point B. If the line joining A and B is horizontal, what is the work done on the object by the gravitational force? Explain your answer.

Certain force acting on a 20 kg mass changes its velocity from 5 m s^–1 to 2 m s^–1. Calculate the work done by the force.

A battery lights a bulb. Describe the energy changes involved in the process.

An object thrown at a certain angle to the ground moves in a curved path and falls back to the ground. The initial and the final points of the path of the object lie on the same horizontal line. What is the work done by the force of gravity on the object?

Define average power.

A lamp consumes 1000 J of electrical energy in 10 s. What is its power?

Define 1 watt of power.

What is power?

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