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Choose from the following the best the best statement about…

Posted on: August 19, 2025 Last updated on: December 12, 2025 Written by: Anonymous
Choose from the following the best the best statement about specific heat of a substance.
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A 90-kg man climbs up a flight of steps 5.5 m high in 30 s….

Posted on: August 19, 2025 Last updated on: December 12, 2025 Written by: Anonymous
A 90-kg man climbs up a flight of steps 5.5 m high in 30 s. What is the power developed by the man?
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In order to explain the nature of light using the experiment…

Posted on: August 19, 2025 Last updated on: December 12, 2025 Written by: Anonymous
In order to explain the nature of light using the experimental results known in his time, Neils Bohr came up with a theory called the complementarity principle. Which of the following is the best explanation of this principle?
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What is the increase in potential energy of a boy who does 8…

Posted on: August 19, 2025 Last updated on: December 12, 2025 Written by: Anonymous
What is the increase in potential energy of a boy who does 80 J of work in climbing a flight of stairs?
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Which of the following statement is true of the gravitationa…

Posted on: August 19, 2025 Last updated on: December 12, 2025 Written by: Anonymous
Which of the following statement is true of the gravitational force when the distance between two objects decreases?
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The intensity of a sound is a measure of

Posted on: August 19, 2025 Last updated on: December 12, 2025 Written by: Anonymous
The intensity of a sound is a measure of
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According to Newton’s second law of motion

Posted on: August 19, 2025 Last updated on: August 19, 2025 Written by: Anonymous
According to Newton’s second law of motion
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Which of the following is not necessarily true about the ima…

Posted on: August 19, 2025 Last updated on: December 12, 2025 Written by: Anonymous
Which of the following is not necessarily true about the image produced by a pinhole camera?  
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If the speed of sound in air at 0o C is 330 m/s, what is its…

Posted on: August 19, 2025 Last updated on: December 12, 2025 Written by: Anonymous
If the speed of sound in air at 0o C is 330 m/s, what is its speed at 60o C?
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Energy released from the interior of the earth is called

Posted on: August 19, 2025 Last updated on: August 19, 2025 Written by: Anonymous
Energy released from the interior of the earth is called
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