How do you calculate % difference for work and energy? Define the term energy. State and define its SI unit. In other terms of units, what is a joule equal to? a) Nm b) N/m c) W/s d) s/W e) Ns Can someone explain WHY it's possible to have a negative instantaneous KINETIC...
How do scientists measure food energy? An electron changes from an n = 2 to an n = 6 energy state. What is the energy of the photon in joules? What does the amount of enery a wave transmits depend on? How to convert energy units?
The erg is a unit of energy equal to 10−7 joules (100 nJ). It originated in the centimetre–gram–second (CGS) system of units. Joule The International System unit of electrical, mechanical, and thermal energy, equal to the work done when a force of one newton acts through a distanc...
In any atom, like charges repel one another, and opposite charges attract one another. This is why two protons repel each other and so do two electrons, but a proton and an electron attract each other. In an element, the numbers of electrons and protons are equal. Moreover, since they...
The SI standard also includes units derived from the base units. The derived units are defined as products of powers of the base units. For example, one derived unit is the newton, which can be expressed in terms of base units as 1 kg m/s2. Other derived units include the hertz, the...
All surge protectors are not created equal. In fact, there is a tremendous range in both performance and price of protection systems. At one end, you have your basic $5 surge protector power strip, which will offer very little protection. On the other end you have systems costing hundreds ...
On the other hand, a unit in this context could refer to a mole, which measures the amount of a chemical substance. 14 In mathematics, elements are individual objects within a set, crucial to the structure of mathematical theory. Conversely, units in mathematics might refer to the identity ...
However, use of the term kilocalorie faded in the early 20th century, when calories became scientifically defined in terms of joules. This is why in some parts of the world, such as parts of Europe or Australia, people use the term kilojoules instead of calories. One calorie is equal to ...
Kinetic and potential energy are measured in joules. One joule is equivalent to the amount of energy used when one newton of force is used to move an object one meter of distance. Thermal energy is measured in therms. One therm is equal to 100,000 British thermal units, or 1,055 joules...
(with reference to a particular moisture content and temperature) and pure liquid water (at the same temperature). It is expressed as a negative quantity in units of Joules per mole of water (molar enthalpy) or Joules per gram of water (specific enthalpy). The differential enthalpy of ...