Motor Generators

[bistander]

I understand that quantity, power, speed or voltage can be expressed in joules. The question is, why does an engineer involved in design need this? The flywheel also has a corresponding measurement system. But why? Is work as a physical parameter also a unit of measurement in joules? For pricing? I showed everything with links in a post that was blocked. So somehow it's not even interesting.

" joules. The question is, why does an engineer involved in design need this?"

Most power equipment is rated in terms of power and energy. To utilize such equipments, the users are very interested in the energy. After all, that's what they purchase from the utility company to run the equipment, $/kWh. It's world wide standard.
bi

[Rakarskiy]

" joules. The question is, why does an engineer involved in design need this?"

Most power equipment is rated in terms of power and energy. To utilize such equipments, the users are very interested in the energy. After all, that's what they purchase from the utility company to run the equipment, $/kWh. It's world wide standard.
bi

Directly related, first you need to correctly calculate physical phenomena and understand these phenomena correctly. An engineer is a concept, a calculation, a drawing and an implementation. By the way, what is the difference between the operation of a galvanic battery accumulator and a capacitor under load? In physics, there are also concepts such as momentum and angular momentum. How are these concepts interpreted in electrodynamics and mechanics?

They sell quantity, but consume quantity over time. This is interesting for both the seller and the buyer. But creation is power, speed, distance, momentum and torque.

[Rakarskiy]

In my publicly available article I briefly outlined all the conditions: FLYWHEEL FOR OVERUNITY SYSTEMS (or the video is even shorter)

Momentum in Physics - Definition, Formula, Examples Relationship Between Momentum and Inertia

Momentum and inertia are closely related concepts in physics, but they describe different aspects of an object’s motion and resistance to change. Inertia contributes to the overall momentum of an object, demonstrating why heavier objects (greater inertia) moving at the same speed have more momentum than lighter ones.

• Inertia:
  • Inertia is the property of an object that resists changes to its state of motion or rest. It directly relates to the object’s mass; the greater the mass, the greater the inertia.
  • Inertia explains why a stationary object remains at rest and a moving object continues in its motion unless acted upon by an external force, as described by Newton’s first law of motion.
• Momentum:
  • Momentum is the measure of an object’s motion, defined as the product of its mass and velocity. It describes how difficult it is to stop or change the direction of a moving object.
  • Momentum depends on both the object’s mass (inertia) and its velocity, combining the resistance to change from inertia with the actual state of motion.
• Relationship Between Momentum and Inertia:
  • Inertia provides the “mass” component in the calculation of momentum. Without inertia (mass), an object has no momentum.
  • Essentially, inertia resists changes in motion, while momentum quantifies the motion that an object with inertia already has. Together, they help explain how objects behave when forces act on them, combining the resistance due to mass with the movement from velocity.

Friction | Definition, Types, & Formula | Britannica