0
Wnet= W1-w2=p1v-P2v
Energy is delta PEg and kinetic energy Delta KE of a fluid.
Delta KE= (1/2)(gv)V1^2 -(1/2)(gv)v2^2
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
What is Bernonilis law?
Heating water Cp = 1 cal/ g K
What if energy was not conserved?
Then, according to Noether's Theorem, the laws of nature would change over time. (Nowadays the Law of Conservation of Energy is commonly derived from Noether's Theorem, but it was known for a long time, from experience, that energy was conserved.)
Can energy be produced?
You can't create energy out of nothing (First Law of Thermodynamics); this is an experimentally established fact (i.e., no exceptions are known). Nowadays, the law of conservation of energy (or First Law of Thermodynamics) is often derived from Noether's Theorem, but that is some advanced math.You can convert one type of energy to another, but see also the Second Law of Thermodynamics.You can't create energy out of nothing (First Law of Thermodynamics); this is an experimentally established fact (i.e., no exceptions are known). Nowadays, the law of conservation of energy (or First Law of Thermodynamics) is often derived from Noether's Theorem, but that is some advanced math.You can convert one type of energy to another, but see also the Second Law of Thermodynamics.You can't create energy out of nothing (First Law of Thermodynamics); this is an experimentally established fact (i.e., no exceptions are known). Nowadays, the law of conservation of energy (or First Law of Thermodynamics) is often derived from Noether's Theorem, but that is some advanced math.You can convert one type of energy to another, but see also the Second Law of Thermodynamics.You can't create energy out of nothing (First Law of Thermodynamics); this is an experimentally established fact (i.e., no exceptions are known). Nowadays, the law of conservation of energy (or First Law of Thermodynamics) is often derived from Noether's Theorem, but that is some advanced math.You can convert one type of energy to another, but see also the Second Law of Thermodynamics.
Who demonstrated the first law of thermodynamics?
The First Law of Thermodynamics - or Law of Energy Conservation - can't be attributed to a single person. It developed gradually over time; initially, the conversion of specific types of energy was known, gradually more and more types of energy were added.Nowadays, it is commonly derived from Nöther's Theorem - a theorem created by Emily Nöther.
On which law or theorem does a rocket work on?
Newton's third law of motion - simplified into the sentence, "To every action there is an equal and opposite reaction."
What are the 3 parts of the Law of Conservation of Energy?
-energy cannot be destroyed -energy cannot be created -energy can only can converted into different forms of energy
What happens if law of conservation of energy is wrong and what if energy is created?
Then the laws of physics would change over time. Read about Noether's Theorem for more details.
How does the conservation of mass help us with our lives?
The law of conservation of mass states that matter cannot be created nor destroyed, only it's form changed. ============================ Answer 2: Einstein stated the mass-energy conservation theorem where energy and mass are inter convertible and the total amount of energy in the universe is constant. This particular law is the base of all matter in the universe. How does a firecracker work, how do you get electricity, how do you transport yourself from one place to another, etc all works on this particular theorem.
Why cant energy be created nor destryed?
The "why" is somewhat tricky to answer; the law of conservation of energy was originally based on observation. Nowadays, if you read about the conservation of energy, it is derived from Noether's Theorem. This is some very advanced math, but briefly, it states that every conservation law is related to a symmetry in nature. In the case of conservation of energy, it is related to the fact that laws of physics don't change over time. In other words, according to this theorem, if energy were NOT conserved, then the laws of nature would change over time! However, the details are some very advanced math. You can read the Wikipedia article on Noether's Theorem if you think you can handle it - or if you just want a brief introduction.The "why" is somewhat tricky to answer; the law of conservation of energy was originally based on observation. Nowadays, if you read about the conservation of energy, it is derived from Noether's Theorem. This is some very advanced math, but briefly, it states that every conservation law is related to a symmetry in nature. In the case of conservation of energy, it is related to the fact that laws of physics don't change over time. In other words, according to this theorem, if energy were NOT conserved, then the laws of nature would change over time! However, the details are some very advanced math. You can read the Wikipedia article on Noether's Theorem if you think you can handle it - or if you just want a brief introduction.The "why" is somewhat tricky to answer; the law of conservation of energy was originally based on observation. Nowadays, if you read about the conservation of energy, it is derived from Noether's Theorem. This is some very advanced math, but briefly, it states that every conservation law is related to a symmetry in nature. In the case of conservation of energy, it is related to the fact that laws of physics don't change over time. In other words, according to this theorem, if energy were NOT conserved, then the laws of nature would change over time! However, the details are some very advanced math. You can read the Wikipedia article on Noether's Theorem if you think you can handle it - or if you just want a brief introduction.The "why" is somewhat tricky to answer; the law of conservation of energy was originally based on observation. Nowadays, if you read about the conservation of energy, it is derived from Noether's Theorem. This is some very advanced math, but briefly, it states that every conservation law is related to a symmetry in nature. In the case of conservation of energy, it is related to the fact that laws of physics don't change over time. In other words, according to this theorem, if energy were NOT conserved, then the laws of nature would change over time! However, the details are some very advanced math. You can read the Wikipedia article on Noether's Theorem if you think you can handle it - or if you just want a brief introduction.
What is the relationship between work input and work output with reference to the law of conservation of energy?
Work output is less than or equal to the work input. This is the law of conservation of energy.
Why Lami's theorem cannot be used for 4 concurrent forces?
Because, this theorem comes from the law of sines which is completely a triangle law and the law of sines can not be applied on other polygons.
How can law of conversation of energy be demonstrated?
Nowadays it is demonstrated by Noether's Theorem. Note that this involves some fairly advanced math. The basic assumption (for the Theorem) is that the laws of physics don't change over time. Another kind of reasoning is by observation: in all known processes, energy is always conserved.
