Explanation:
Commercially available batteries use a variety of metals and electrolytes. Anodes can be made of zinc, aluminum, lithium, cadmium, iron, metallic lead, lanthanide, or graphite. Cathodes can be made of manganese dioxide, mercuric oxide, nickel oxyhydroxide, lead dioxide or lithium oxide. Potassium hydroxide is the electrolyte used in most battery types, but some batteries use ammonium or zinc chloride, thionyl chloride, sulfuric acid or lithiated metal oxides. The exact combination varies by battery type. For example, common single-use alkaline batteries use a zinc anode, a manganese dioxide cathode, and potassium hydroxide as the electrolyt
Mechanical energy is the sum of E potensial and E kinetical
Answer:
K remains constant
Explanation:
The magnetic force does not do any work on the ion.
In fact, the magnetic force due to a magnetic field is always perpendicular to the motion of the charge itself. Keep in mind that the work done by a force is given by
![W=Fdcos \theta](https://tex.z-dn.net/?f=W%3DFdcos%20%5Ctheta)
where F is the magnitude of the force, d is the displacement of the particle, and
is the angle between the direction of the force and the displacement. Since the magnetic force is perpendicular to the displacement of the ion, then
and
, so the work done is zero.
For the work-energy theorem, the work done on the ion is equal to the variation of its kinetic energy:
![\Delta K=W](https://tex.z-dn.net/?f=%5CDelta%20K%3DW)
However, since W=0, then
, which means that the kinetic energy of the ion does not change.
Answer: An object at rest has no kinetic energy, but it may have potential energy resulting from its location or structure.
Explanation: To find the answer, we need to know more about the kinetic and potential energies.
<h3>What is kinetic energy of a body?</h3>
- Kinetic energy is a form of mechanical energy possessed by a body by virtue of its motion.
- Kinetic energy of a body of mass m moving with a velocity v is given by,
![KE=\frac{1}{2}mv^2](https://tex.z-dn.net/?f=KE%3D%5Cfrac%7B1%7D%7B2%7Dmv%5E2)
<h3>What is potential energy?</h3>
- Potential energy is a form of mechanical energy possessed by a body by virtue of its position in the field or configuration.
- PE is always associated with a conservative force.
- There cannot be potential energy due to frictional or viscous forces.
Thus, we can conclude that, an object at rest has no kinetic energy, but it may have potential energy resulting from its location or structure.
Learn more about the kinetic and potential energies here:
brainly.com/question/28044620
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