If this is your first visit, be sure to
check out the FAQ by clicking the
link above. You may have to register
before you can post: click the register link above to proceed. To start viewing messages,
select the forum that you want to visit from the selection below.
Newton also recognized he couldn't find the correct final velocity of a ballistic pendulum setup if he used energy conservation. But using conservation of momentum always lead to the correct result. He said "'if instead of conserving energy you conserve momentum, you will get the right answer, for momentum is not convertible to any other form." That last statement is very important. Momentum or inertia as some like to call it has NO OTHER FORM than mass multiplied by the amount of velocity it has.
Could you please post your reference for this? I would like to read firsthand what Newton had to say!
he law of conservation of energy is an empirical law of physics. It states that the total amount of energy in an isolated system remains constant over time (is said to be conserved over time). A consequence of this law is that energy can neither be created nor destroyed: it can only be transformed from one state to another. The only thing that can happen to energy in a closed system is that it can change form: for instance chemical energy can become kinetic energy.
Albert Einstein's theory of relativity shows that energy and mass are the same thing, and that neither one appears without the other. Thus in closed systems, both mass and energy are conserved separately, just as was understood in pre-relativistic physics. The new feature of relativistic physics is that "matter" particles (such as those constituting atoms) could be converted to non-matter forms of energy, such as light; or kinetic and potential energy (example: heat). However, this conversion does not affect the total mass of systems, since the latter forms of non-matter energy still retain their mass through any such conversion
The Electrical Engineer will be responsible for the following:
- Lead engineering team on the design of commercial, institutional and utility-scale PV systems, ensuring projects meet schedule and budget.
- Oversee production of electrical engineering plans, specifications, document preparation, and ensure compliance with applicable project and industry requirements and standards.
- Perform site assessments of existing electrical services at the facilities to determine feasibility of interconnection of a PV system.
- Coordinate project design reviews, jurisdictional and utility approvals for projects, and interface closely with development, engineering, and construction teams.
- Provide guidance to system designers throughout project design, as well as peer review of other engineers’ work.
The Electrical Engineer will be responsible for the following:
- Lead engineering team on the design of commercial, institutional and utility-scale PV systems, ensuring projects meet schedule and budget.
- Oversee production of electrical engineering plans, specifications, document preparation, and ensure compliance with applicable project and industry requirements and standards.
- Perform site assessments of existing electrical services at the facilities to determine feasibility of interconnection of a PV system.
- Coordinate project design reviews, jurisdictional and utility approvals for projects, and interface closely with development, engineering, and construction teams.
- Provide guidance to system designers throughout project design, as well as peer review of other engineers’ work.
Comment