Asked in Physics, History of Science, Energy
What is the rate at which energy is transformed from one form to another?
That is called "power". The SI unit of energy is the joule, the SI unit for power is the watt, which is equal to joules/second. That is called "power". The SI unit of energy is the joule, the SI unit for power is the watt, which is equal to joules/second. That is called "power". The SI unit of energy is the joule, the SI unit for power is the watt, which is equal to joules/second. That is called "power". The SI unit...
Asked in Energy
What unit measures the amount of electrical energy?
The official unit to measure energy is joules, which is equal to watt-seconds. However, power companies charge you for electrical energy in kWh; one kilowatt-hour = 3.6 million joules. ...
Asked in Definitions
What exactly is the definition of a british thermal unit?
A British thermal unit is a unit of energy that is equal to about 1055 joules. A British thermal unit is the amount of energy that is needed to heat or cool one pound of water by one degree Fahrenheit. ...
Asked in Math and Arithmetic, Units of Measure, Physics
How do you convert 9454400640000000000 Newtons to Joules?
Newtons are a measure of force, joules are a measure of energy. The two measure different characteristics and, according to the most basic rules of dimensional analyses, attempting to convert from one to the other is not valid. ...
Asked in Physics
How many joules of energy are produced when one one thousandth kg of mass is changed into energy?
E=mc2 E = kgE-3 x 9E16 = 9E13 Joules.
Asked in Calculus, Technology, Trigonometry
What is the equation of converting horsepower to joule?
Horsepower is a unit of power, but joules is a unit of energy. To convert horsepower to joules, you need an additional time parameter. One horsepower is about 745.7 watts. So a horsepower-hour is 745.7 watt-hours. One watt-hour is 3600 joules. A horsepower-hour is then 745.7 times 3600 = 2684520 joules. ...
Asked in Biology, Units of Measure, Earth Sciences
Is kWh a unit of power or a unit of work energy power or more than one of these?
kWh = the abbreviation for "kilowatt-hour". It's a unit of energy, equal to 3.6 million joules (3.6 million newton-meters). ...
Asked in Units of Measure, Physics
How many joules are there in one newton?
A Joule is a unit of work and a newton is a unit of force. Work is a force thru a distance. One joule is the work done, or energy expended, by a force of one newton moving one meter along the direction of the force. ...
Asked in Science, Home Electricity
How many joules are used to produce light in a 100 watt light bulb?
Joule is the unit of energy. Watt is the unit of power. One Joule provides one Watt for one second. A 100 Watt lamp uses 100 Joules per second. Answer Power is the rate of doing work. Work is measured in joules, so power is measured in joules per second. However, in SI, a joule per second is given a special name: the watt. So a 100-W lamp consumes 100 J of energy per second. ...
Asked in Physics
What is SI and commercial unit of energy?
The SI unit of energy is Joules The commercial unit of energy is KiloWaltHour(KWh) The relationship between SI unit and commercial unit is: 1 KWh=3.6*106J (or 3600000 J) One KiloWaltHour is: 1kWh = 1kW * 1h And the definition for kWh is: 1kWh is the electric energy consumed by an appliance of power 1 whenit is used for one hour ...
Asked in Technology, Calorie Count
How many joules can one get out of a typical AA battery?
You get actually energy (Watts) out of a battery, not calories (which is food energy). ...
1 mole is how many joules?
The mole is a unit of quantity of matter, whereas the Joule is a unit of energy. The relation depends on the substance, and what you wish to do with it. If you had a single mole of one substance and a mole of another and they were stoichiometrically combined, then the energy from the reaction could be calculated, and that could be expressed in Joules. On the other hand, you could also use the equation E=mc2 to derive the annihilation energy of...
Asked in Energy, Calorie Count
How do you calculate energy in kilojoules?
REMEMBER that energy is neither created or destroyed but changed from one form to another. Kinetic energy (known as the energy during a motion) is the result of potential energy (stored energy by different means, by mechanical means or due to gravity). Joules is the unit of measuring the packet of energy, and kilojoules is just a bigger unit. 100J is 0.1kJ. Some Expressions to measure energy. Ek = 1/2mv2 EP = mgh unit is joules for both, k= kinetic, p= potential ...
Asked in Units of Measure, Physics
How many joules equals one horsepower?
OK these are known 1 HorsePower= 746 Watt 1 Watt= 3.413 BTU by multiplying how many watts in an HP (746) by how many BTUs in a watt (3.413) we know 1 HP=2546 BTU there are 1055 Joules in 1BTU so multiply how many joules per 1 BTU (1055) by how many BTU in 1 HP (2546) and you get 2,686,133.4 Joules per 1HP Answer You are comparing apples with oranges. A horsepower is the Imperial unit of measurement for power, whereas the joule is the SI unit of...