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

ice that uses motion and magnetism can be used to create (light, electromagnetism, electricity ).

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The alteration in kinetic energy is $\Delta K = 3Fd$

Clarification:

According to the work-energy principle, the task performed on an object corresponds to the alteration in its kinetic energy. In mathematical terms:

$W=K_f -K_i= \Delta K$

where:

W signifies the work performed on the object

$K_f$ denotes the kinetic energy at the end

$K_i$ indicates the kinetic energy at the start

Furthermore, when the force is exerted in line with the object’s motion, the work done is expressed as:

$W=F\Delta x$

Here,

F represents the force’s magnitude

$\Delta x$ denotes the object’s displacement

In this scenario, the force impacting the object is

While the distance moved is the horizontal length traveled, hence

$\Delta x = 3d$

Consequently, the work accomplished is

$W=(F)(3d)=3Fd$

Thus, the alteration in kinetic energy amounts to

$\Delta K = 3Fd$

Learn more about work and kinetic energy:

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