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3 years ago

All objects emit electromagnetic radiation as a result of _____.

Physics

1 answer:

Artist 52 [7]3 years ago

8 0

One

All objects, every one, as long as the object is not at absolute zero (not very many objects are -- like no common object) emit electromagnetic radiation because they possess thermal (heat) energy.

The answer, surprisingly, is A.

Two

This is just an example of Snells law. The angles are with the normal.

Index of Refraction = sin(input angle) / sin(outgoing angle)

Index of Refraction = sin(angle incidence)/sin(angle of refraction)

Index of Refraction = Sin (36)/Sin(27.5)

Index = 1.28 (rounded)

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A falling ball of mass 0.5 kg experiences a downward force due to gravity of mg (where g = 9.8 m/s2) and an upward force of air

schepotkina [342]

Applying Newton's Second Law of Motion, the acceleration of the ball is 16.8 $m/s^2$

Given the following data:

Mass = 0.5 kg

Acceleration due to gravity = 9.8 $m/s^2$

Upward force = 3.5 N.

To find ball's acceleration, we would apply Newton's Second Law of Motion:

First of all, we would determine the net force acting on the ball.

$Net \; force = Upward\;force + Downward\;force$

$Downward\;force = 0.5$ × $9.8$

Downward force = 4.9 N

$Net \; force = 3.5 + 4.9$

Net force = 8.4 N

Mathematically, Newton's Second Law of Motion is given by this formula;

$Acceleration = \frac{Net\;force}{Mass}\\\\Acceleration = \frac{8.4}{0.5}$

Acceleration = 16.8  $m/s^2$ 

Therefore, the acceleration of the ball is 16.8 $m/s^2$

Read more here: brainly.com/question/24029674

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3 years ago

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strojnjashka [21]

mass is the correct answer

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agasfer [191]

Answer:

D) 1000 m/s

Explanation:

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Hope this helps.

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