3 years ago

true or false refraction occurs when the amplitude of a wave changes as it goes from one medium to aother

Physics

1 answer:

KiRa [710]3 years ago

4 0

The answer here is true

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An old millstone, used for grinding grain in a gristmill, is a solid cylindrical wheel that can rotate about its central axle wi

MAXImum [283]

Answer:

The answer is I=70,513kgm^2

Explanation:

Here we will use the rotational mechanics equation T=Ia, where T is the Torque, I is the Moment of Inertia and a is the angular acceleration.

When we speak about Torque it´s basically a Tangencial Force applied over a cylindrical or circular edge. It causes a rotation. In this case, we will have that T=Ft*r, where Ft is the Tangencial Forge and r is the radius

Now we will find the Moment of Inertia this way:

$Ft*r=I*a$ -> $(Ft*r)/(a) = I$

Replacing we get that I is:

$I=(200N*0,33m)/(0,936rad/s^2)$

Then $I=70,513kgm^2$

In case you need to find extra information, keep in mind the Moment of Inertia for a solid cylindrical wheel is:

$I=(1/2)*(m*r^2)$

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3 years ago

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geniusboy [140]

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3 years ago

Is the relationship between the length of a pendulum and its period is valid at all times?

Stels [109]

Yes it is valid all the times under the consideration of acceleration due to gravity .it is not valid on space where there is no influence of gravity

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3 years ago

Which of these best describes heat? total thermal energy degree of warmth transfer of thermal energy average kinetic energy

Papessa [141]

Total thermal energy is the answer to your question.

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3 years ago

A student walks 3 blocks east, 4 blocks north, and 3 blocks west. What is the displacement of the student?

12345 [234]

4 blocks north because he is it not asking for north east

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3 years ago

true or false refraction occurs when the amplitude of a wave changes as it goes from one medium to aother​

true or false refraction occurs when the amplitude of a wave changes as it goes from one medium to aother