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Veronika [31]
3 years ago
6

A device that uses electricity and magnetism to create motion is called a _________motor,magnet,generator . In a reverse process

, a device that uses motion and magnetism can be used to create ________ light,electromagnetism,electricity
Physics
2 answers:
lawyer [7]3 years ago
5 0
A device that uses electricity and magnetism to create motion is called a "Motor" (which converts electric energy into mechanical energy) & <span>In a reverse process, a device that uses motion and magnetism can be used to create "Electromagnetism".

In short, 1st Blank = Motor
2nd Blank = Electromagnetism 

Hope this helps!</span>
Drupady [299]3 years ago
5 0

Answer:

1. motor

2. electricity

Explanation:

A motor uses electromagnetism or electricity and magnetism to create motion. A motor converts electric energy into mechanical energy.

On the other hand, the reverse process of using motion and magnetism will create electricty. It will convert the mechanical energy to electrical energy. And the machine that does it is called a generator.

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A simple pendulum has a mass of 0.259 kg and a length of 0.97 m. It is displaced through an angle of 31.4 degrees and then relea
boyakko [2]

Answer:

The energy lost is 0.333156518 J.

Explanation:

The given mass of the pendulum = 0.259 kg

Length = 0.97 m

Displaced at an angle of = 31.4 degrees

Maximum angle of swing = 10 degrees

Initial potential energy = mgh

Initial potential energy = 0.259 × 9.8 × (1 – cos31.4)

= 0.259 × 9.8  × ( 1- 0.853551)

= 0.371716852 J

Final potential energy = mgh

Final potential energy = 0.259 × 9.8 × (1 – cos10)

= 0.259 × 9.8 × (1 – 0.984808)

= 0.0385603344 J

The lost energy =  Initial potential energy - Final potential energy  

= 0.371716852 J - 0.0385603344 J  

= 0.333156518 J

4 0
4 years ago
Mario, a hockey player, is skating due south at a speed of 4.79 m/s relative to the ice. A teammate passes the puck to him. The
frez [133]

Mario's velocity vector relative to the ice is

\vec v_{M/I}=-4.79\,\vec\jmath

(note that all velocities mentioned here are given in m/s)

The puck is moving in a direction of 17.8 degrees west of south, or 252.2 degrees counterclockwise relative to east. Its velocity vector relative to the ice is then

\vec v_{P/I}=9.13(\cos252.2^\circ\,\vec\imath+\sin252.2^\circ\,\vec\jmath)=-2.79\,\vec\imath-8.69\,\vec\jmath

The velocity of the puch relative to Mario is

\vec v_{P/M}=\vec v_{P/I}+\vec v_{I/M}=\vec v_{P/I}-\vec v_{M/I}

\vec v_{P/M}=-2.79\,\vec\imath-3.90\,\vec\jmath

Then, relative to Mario,

a. the puck is traveling at a speed of \boxed{\|\vec v_{P/M}\|=4.80}, and

b. is moving in a direction \theta such that

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which is about \boxed{35.6^\circ} west of south.

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3 years ago
Ejercicio 1: Un cuerpo gira en un círculo de 8cm de diámetro con una rapidez constante
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Answer:

Exercise 1;

The centripetal acceleration is approximately 94.52 m/s²

Explanation:

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The radius of the circle = Diameter/2 = 0.08/2 = 0.04 m

The speed of motion = 7 km/h = 1.944444 m/s

The centripetal acceleration = v²/r = 1.944444²/0.04 ≈ 94.52 m/s²

The centripetal acceleration ≈ 94.52 m/s²

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Answer:

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Explanation:

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Answer:

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