Electric potential = work done/charge of electron = 2.18×10⁻¹⁸/1.6×10⁻¹⁹
= 13.625 V
Answer:
the high temperature needed to operate this refrigerator is C) 137.4° C
Explanation:
Hello!
The carnot refrigeration cycle is one in which a machine absorbs heat from an enclosure and expels it to the surroundings, the equation that defines the COP performance coefficient for this cycle is:
COP=performance coefficient =2.1
T1= Low temperature
T2=high temperature
Now use algebra to find the high temperature
If we replace the values:
note = remember that the temperature must be in absolute units, for which we must add 273.15 to the low temperature to find the temperature in Kelvin
T1 = 5 + 273.15 = 278.15K
In celsius
T2=410.60-273.15=137.4° C
the high temperature needed to operate this refrigerator is C) 137.4° C
You should know from basic science that the difference in the three phases of matter is the arrangement of their molecules. Solids have compact molecules. Because of this, it is relatively more organized such that it is made up simple, repeating blocks of unit cells. This is called the crystal lattice. When the solid is heated, the kinetic energy of the system increases, thereby increasing frequency of collisions. But since the solid's atoms are compact, they merely vibrate. When the energy gets too high so that phase transformation can be achieved, the space inside the crystal lattice expands and the atoms move farther away from each other. Then, they could turn into a liquid of gaseous phase.
Answer:
The wavelength is λ, the frequency is ν and the energy is 100E.
Explanation:
The energy of a single photon is given by:
<u>Where:</u>
E: is the energy of a single photon,
h: is the Planck constant,
c: is the speed of light,
λ: is the photon's wavelength and
ν: is the photon's frequency
The wavelength and the frequency of the 100 photons are the same as the single-photon since the pulse of light contains 100 times the single-photon, therefore, for the pulse of light we have that the wavelength is λ, the frequency is ν, and the energy is:
Hence, the energy of the pulse of light is 100 times the E of the single photon.
I hope it helps you!
It depends for what purpose the audience have gathered and where they are.
I am going to have to say:
B. Physical Appearance as it fits in all or most audience categories.