1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kompoz [17]
3 years ago
5

EXPLAIN HOW ENERGY IS TRANSMITTED THROUGH A MEDIUM

Physics
2 answers:
Alex777 [14]3 years ago
7 0
Energy can be transmitted through a medium in one of 3 ways:

Conduction -  This occurs when particles of a substance collide with one another, transferring some of their energy to each other in the process. This generally occurs most rapidly in solids due to the close proximity and order of the particles, and most slowly in gases, due to the sparse nature of the particles.

Convection - This occurs when a fluid has a temperature gradient decreasing with increasing altitude. For example, when a pan of water is heated, the higher energy water molecules at the bottom have a lower density than the lower energy molecules at the top of the pan and travel upwards through the liquid, while their place is taken by the lower energy molecules. This phenomenon also occurs in gases (think hot air balloon).

Radiation - This does not involve the movement of particles whatsoever, instead the energy is being transferred in the form of electromagnetic radiation (such as light). This is how the Sun heats the earth, as there are very few particles in space, certainly not enough for conduction/convection. (Note: this does technically involve the movement of particle called photons that make up the radiation, but they are not treated as physical particles like molecules).

Hope this helps.
jek_recluse [69]3 years ago
5 0
I say it helped then because TrueType had room
You might be interested in
Two copper rods are separated by a small gap at B. Rod AB has a diameter of 200mm and rod BC has a diameter of 150mm. Find the f
gulaghasi [49]

Answer:

A)3.8196 * 10^{9} Newtons        B) 2.153 * 10^{9} Newtons

Explanation:

Force = Pressure * Area.

Pressure is given as  120GPa

Area = Cross Sectional Area of Rod = Area Of A circle = πR^{2}.

Area Expansivity β =    \frac{Change in Area}{Original Area * Temperature Rise}

Area Expansivity β = 2α

α =  16.9x10-6/ ° C.

Radius of Rod AB = Half 0f Diameter, 200mm = \frac{0.2m}{2} = 0.1 m

Radius of Rod BC = Half Of Diameter, 150mm = \frac{0.15}{2} = 0.075 m.

Note: To convert from millimeter to meter you divide by 1000.

Area of Rod AB = π * 0.1^{2} =  0.0314m^{2}

Area of Rod BC = π * 0.075^{2} = 0.0177m^{2}.

Change in Area = 2α * Original Area * Temperature Rise. Therefore for

Rod AB = 2 * 16.9*10^{-6} * 0.0314 * 30 = 3.183 * 10^{-5}m^{2}.

For Rod BC we have = 2 * 16.9*10^{-6} * 0.0177 * 30 = 1.794∈-5m^{2}.

The forces on each rods will be given by.

Force AB = Pressure * Area  of Rod AB

                 = 120GPa * 3.183 * 10^{-5} gives 3.8196 * 10^{9} Newtons.

Force BC = Pressure * Area of Rod BC

                = 120GPa * 1.794 * 10^{-5} gives 2.153 * 10^{9} Newtons

7 0
3 years ago
A loaded wagon of mass 10,000 kg moving with a speed of 15 m/s strikes a stationary wagon of the same mass making a perfect inel
kkurt [141]

Answer:

7.5 m/s

Explanation:

Unfortunately, I don't have an explanation but I guessed the correct answer.

4 0
3 years ago
Differentiate between angular displacement and linear displacement.​
Sauron [17]

Answer:

The angular displacement is not a length (not measured in meters or feet), so an angular displacement is different than a linear displacement. ... As the object rotates through the angular displacement phi, the point on the edge of the disk moves distance sa along a circular path.

7 0
2 years ago
How can electric shock be prevented?
Nina [5.8K]

Wearing rubber or stay away from water or/ and a conductor

7 0
3 years ago
The total yearly world consumption of energy is approximately 4.0 × 1020 J. How much mass would have to be completely converted
BabaBlast [244]

Answer:

m = 4.4 × 10³ kg

Explanation:

Given that:

The total yearly energy is 4.0 × 10²⁰ J

The amount of mass that provides this energy can be determined by using the formula:

E = mc²

where;

c = speed of light in free space = (3 × 10⁸)

4.0 × 10²⁰ = m × (3 × 10⁸)²

m = \dfrac{4.0 \times 10^{20} }{(3\times 10^8)^2}

m = 4.4 × 10³ kg

6 0
3 years ago
Other questions:
  • What is an important difference between medieval muslim and christian art?
    15·1 answer
  • 12. A 1.2-kg bucket of water is held by a string and spun in a horizontal circle with an acceleration of 24.6
    5·1 answer
  • Dibujar un triángulo,dividelo en tres partes,en la parte de arriba ponga la D = a la distancia,en la parte de abajo a la izquier
    5·1 answer
  • If an acid is combined with a base of equal strength, the result will most likely be
    9·1 answer
  • Quelqu'un peut m'aider je doit rendre ceci demain merci d'avance ps: c'est noté
    11·1 answer
  • What key ingredient in the modern condensation theory was missing or unknown in the nebula theory?
    7·1 answer
  • PLZ HELP ME
    11·2 answers
  • Which is a form of energy that can move from a hot place to a cooler place, or the transfer of energy from one body to another?
    14·1 answer
  • True or false?
    13·2 answers
  • (1 point)
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!