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Defined as one joule of energy expended over one second of time?
A joule / second is a watt. The watt is a unit of power. In general terms, power means energy expended, produced, or transferred, per time unit.A joule / second is a watt. The watt is a unit of power. In general terms, power means energy expended, produced, or transferred, per time unit.A joule / second is a watt. The watt is a unit of power. In general terms, power means energy expended, produced, or transferred, per time unit.A joule / second is a watt. The watt is a unit of power. In general terms, power means energy expended, produced, or transferred, per time unit.
When referring to physics what is the law of conservation of energy?
The law of conservation of energy states that the energy cannot be created or destroyed. With respect to this, it continues to state that in a total system energy remains constant and energy is conserved over a period of time.
What is the units for work?
In physics, work is a form of energy. The unit of energy in the SI system of units is the Joule. One Joule of energy is equal to the work done by a force of 1 Newton acting over a distance of 1 meter.
Work is done when in physics?
In physics, work is done when a force is applied over a certain distance.
What is the principal of conversion of energy?
The main principle is that energy could not be created from nothing and never vanish.In physics, the law of conservation of energy states that the total energy of an isolated system cannot change-it is said to be conserved over time.Energy can be neither created nor destroyed, but can change form; for example chemical energy to change to kinetic energy, potential energy to change to kinetic energy, kinetic energy to change to electrical energy, ... etc.
Mechanical energy is the energy due to what?
It is the energy expended by a mechanical force acting over a distance.
Defined as one joule of energy expended over one second of time?
A joule / second is a watt. The watt is a unit of power. In general terms, power means energy expended, produced, or transferred, per time unit.A joule / second is a watt. The watt is a unit of power. In general terms, power means energy expended, produced, or transferred, per time unit.A joule / second is a watt. The watt is a unit of power. In general terms, power means energy expended, produced, or transferred, per time unit.A joule / second is a watt. The watt is a unit of power. In general terms, power means energy expended, produced, or transferred, per time unit.
Can magnets make free energy?
No. There is no known way to make energy where there was none before. According to Nöther's Theorem, if Conservation of Energy wasn't valid, that would mean that the laws of physics changed over time!
What does an over-line bar over a variable mean in physics?
It could represent a vector.
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.
When referring to physics what is the law of conservation of energy?
The law of conservation of energy states that the energy cannot be created or destroyed. With respect to this, it continues to state that in a total system energy remains constant and energy is conserved over a period of time.
Why cant there be a perpetual machine?
It isn't entirely clear what you mean with "perpetual machine". If you mean the old dream of the "perpetuum mobile", such a machine would violate the Law of Conservation of Energy; there are various reasons to assume that this law can't be violated:* Despite lots of attempts, by thousands of ingenious inventors, and over centuries, nobody has managed to violate Conservation of Energy so far. * Violating Conservation of Energy would also violate lots of other laws of physics, which are generally considered to be true. For example, Conservation of Mass, and Conservation of Momentum. * By Nöther's Theorem, the possibility that the amount of energy changes over time would be equivalent to the laws of physics changing over time! - Nowadays, the Law of Conservation of Energy is normally derived from Nöther's Theorem.
In the 1780 what was over 50 percent of Frances annual budget was expended on?
Interest payments on the debt
How have the laws of physics changed of time?
The laws of physics have not changed over time. Our understanding of them has changed over time.
How many years would it take for a human to get to mars?
It all depends on the amount of energy expended to do the job. With our current technologies, about a year to a year and a half. Distance to Mars varies wildly, from about 40 million miles to over 120 million.
What is the units for work?
In physics, work is a form of energy. The unit of energy in the SI system of units is the Joule. One Joule of energy is equal to the work done by a force of 1 Newton acting over a distance of 1 meter.
Work is done when in physics?
In physics, work is done when a force is applied over a certain distance.
