3 years ago

Waves carry ______ from one place to another? energy crests troughts wavelengths

Physics

2 answers:

Leni [432]3 years ago

7 0

Answer:

Energy.

Explanation:

Waves can travel through medium and can be without medium.

In electromagnetic waves the energy travels through vibration of electric field and magnetic field while in sound waves energy is transferred through vibration of particles through which sound waves are travelling or though vibration of air particles.

dlinn [17]3 years ago

7 0

Energy from one place

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Which applied force will allow a 7.65 kg block of ice to begin sliding on a sheet of ice? The block of ice has a kinetic coeffic

Anni [7]

Answer:

force for start moving is 7.49 N

force for moving constant velocity 2.25 N

Explanation:

given data

mass = 7.65 kg

kinetic coefficient of friction = 0.030

static coefficient of friction = 0.10

solution

we get here first weight of block of ice that is

weight of block of ice = mass × g

weight of block of ice = 7.65 × 9.8 = 74.97 N

so here Ff = Fa

so for force for start moving is

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Fa = 7.49 N

and

force for moving constant velocity is

Fa = weight × kinetic coefficient of friction

Fa = 74.97 × 0.030

Fa = 2.25 N

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4 years ago

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