Physics, 16.03.2020 19:16 dummynate

When comparing and contrasting EM mechanical waves

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Answer from: ktyree100

Electro magnetic waves are the waves which are produced with vibration of the particles which are charged.

Explanation:

Electromagnetic waves are created by the vibration of charged particles. A mechanical wave is a wave that isn't equipped for transmitting its vitality through a vacuum.

Mechanical waves require a medium so as to ship their vitality starting with one area then onto the next. A sound wave is a case of a mechanical wave. Electromagnetic waves are waves that have no medium to travel whereas mechanical waves need a medium for its transmission. Electromagnetic waves travel in a vacuum

Answer from: Quest

Iread this book last year so take this with a grain of salt.gene jumps from the tree to compete with finny due to the fact that gene is always trying to do better than finny. he is put under the grasp of peer pressure due to finny almost forcing him to do this. ever since he first jumped finny kept pressuring him to jump since he thought gene enjoyed jumping.rather than uses this answer you should probably just reread chapters 3-4

Answer from: Quest

air exerts forces on falling objects near earth’s surface.

explanation:

the term 'free falls' refer to object that are falling towards the earth, in a situation in which gravity is the only force acting on the object.

for an object in free fall, the acceleration is constant (g, the gravitational acceleration), and so the velocity of the object constantly increases.

for objects near earth's surface, there is always another force acting on the object: the resistance due to the air. this force is opposed to the direction of fall of the object, and it is proportional to the velocity of the object, so as the object falls down, this force increases up to a point when it balances the force of gravity, and the object continues its motion at constant velocity (called terminal velocity). since in this case gravity is not the only force acting on the object, we are not in a situation of free fall.

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When comparing and contrasting EM mechanical waves...

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