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
Colt1911 [192]
3 years ago
7

Which of the following devices is based on the property of thermal expansion?

Physics
2 answers:
earnstyle [38]3 years ago
6 0
D. thermometer. The warmer it gets, the more energy the particles gain and the more they move and 'expand', rising up the thermometer.
borishaifa [10]3 years ago
5 0

The correct answer to the question is : D) Thermometre

EXPLANATION:

Thermometre is the device used for measuring the temperature of any substance.

Thermal expansion is the process in which the substance will expand when heat is given to that substance. Thermometre is based on the property of thermal expansion.

Generally, the substance that is used in thermometre is mercury. It expands at a fast rate when a little bit of heat is given to the thermometre.

When the thermometre is connected to any body, the heat will flow from body at high temperature to thermometre. The mercury level rises in the thermometre tube which gives the temperature of that substance under consideration.

Hence, it is the thermometre which is based on thermal expansion.


You might be interested in
The plain flight covers 400 miles in the first hour. As you approach the landing site, it takes you an hour to cover the last 20
tatyana61 [14]

that is an example of negative acceleration because it is slowing down

3 0
3 years ago
three girls were pushing the same car with a net force of 450 N [N48°E]. Two of the girls were pushing with forces of 310 N [N25
ElenaW [278]

The net force is the vector

∑ F = (450 N) (cos(42°) i + sin(42°) j)

and two of the forces provided by the girls are

F₁ = (310 N) (cos(115°) i + sin(115°) j)

F₂ = (250 N) (cos(285°) i + sin(285°) j)

Then the force provided by the third girl is the vector

F₃ = ∑ F - F₁ - F₂

F₃ = ((450 N) cos(42°) - (310 N) cos(115°) - (250 N) cos(285°)) i

… … … + ((450 N) sin(42°) - (310 N) sin(115°) - (250 N) sin(285°)) j

F₃ ≈ (400.722 N) i + (261.635 N) j

So, the third girl provided a force of magnitude

||F₃|| = √((400.722 N)² + (261.635 N)²) ≈ 478.572 N ≈ 480 N

pointing in a direction

arctan((261.635 N)/(400.722 N)) ≈ 33.1409° ≈ 33°

relative to East which refers to 0°; that is, 33° N of E or E33°N. Since the other forces are given relative to North or South, we can write this direction as N57°E.

So, the third girl pushed with force 480 N [N57°E].

5 0
2 years ago
Which one of the following si units is used to measure current?
kondaur [170]
The unit of electric current is the 'ampere'. 

That's the current in the circuit when one coulomb of charge
flows past any fixed point every second.
6 0
3 years ago
In which phase transition do molecules directly move from state to state involving a vibration of particles in a fixed position
siniylev [52]
I believe the correct answer from the choices listed above is the second option It is during sublimation that molecules directly move from state to state involving a vibration of particles in a fixed position to a state involving random movement of high speed particles. It <span> is the transition of a substance directly from the solid to the gas phase without passing through the intermediate liquid phase. </span>
5 0
3 years ago
Read 2 more answers
What colors form the spectrum of visible light?
USPshnik [31]

Answer:

Explanation:

ROYGBIV

Red

Orange

Yellow

Green

Blue

Indigo

Violet

3 0
3 years ago
Read 2 more answers
Other questions:
  • Two waves, each with intensity 40 db, interfere constructively. what is the intensity of the combined waves, in db?
    12·1 answer
  • A square wire, 20 cm on the side, moves at constant speed parallel to the xy-plane into a region where there is a uniform magnet
    6·1 answer
  • An example of an unbalanced force is what
    12·1 answer
  • If the architectural plans show the rough opening of a window to be 3'-3" x 4'-9" , the height of the opening should actually me
    7·1 answer
  • Please help!! This is a final and I need a good grade
    15·1 answer
  • Sound is a mechanical wave; therefore, it __________.
    13·2 answers
  • A stationary source S generates circular outgoing waves on a lake. The wave speed is 5.0 m/s and the crest-to-crest distance is
    9·1 answer
  • Which device transforms electrical energy to mechanical energy?
    11·2 answers
  • PLEASE HELP THIS TEST IS DUE IN TEN MINS
    9·2 answers
  • Select the three words in the following sentence that indicate it is in the third person.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!