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Maurinko [17]
2 years ago
11

what is the main difference between a substance going through a physical change and one going through a chemical ?

Physics
2 answers:
Nata [24]2 years ago
4 0

Answer: <em>Physical changes only change the appearance of a substance, not its chemical composition. Chemical changes cause a substance to change into an entirely substance with a new chemical formula. </em><u><em>Chemical changes are also known as chemical reactions.</em></u>

Ainat [17]2 years ago
3 0

Answer: Physical changes only change the appearance of a substance, not its chemical composition. Chemical changes cause a substance to change into an entirely substance with a new chemical formula. Chemical changes are also known as chemical reactions.

Explanation:

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Determine the linear velocity of an object with an angular velocity of 5.9 radians per second at a distance of 12 centimeters fr
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The linear velocity of a rotating object is the product of the angular velocity and the radius of the circular motion. Angular velocity is the rate of the change of angular displacement of a body that is in a circular motion. It is a vector quantity so it consists of a magnitude and direction. From the problem, the angular velocity is 5.9 rad per second and the radius is given as 12 centimeters. We calculate as follows:

Linear velocity = angular velocity (radius)
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3 years ago
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3 years ago
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jeka94

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4 0
3 years ago
PLEASE HELP FOR PHYSICS!
Stolb23 [73]

Hi there!

Recall Newton's Law of Universal Gravitation:

\large\boxed{F_g = G\frac{m_1m_2}{r^2}}

Where:

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r = distance between objects (m)

Plug in the given values stated in the problem:

F_g = (6.673*10^{-11})\frac{50 * 50}{25^2} = \boxed{2.669 * 10^{-10} N}

8 0
2 years ago
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o-na [289]

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Explanation:

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