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
erik [133]
4 years ago
8

Which of the following best describes how wireless telephones are able to receive and produce sound from one person to another?

Chemistry
1 answer:
alina1380 [7]4 years ago
8 0

D.

Electromagnetic waves are received and then vibrate a speaker which produces sound waves.

Explanation:

The telephone has a receiver-transducer component that can receive electromagnetic wave - radio waves spectrum- and transform them into electric energy. This electric energy is then transformed into sound energy by a speaker. This is how we're able to listen to a phone call.

The opposite happens when we speak on the phone. The sound energy is transformed into electric energy by a microphone – the reverse of a speaker.  The transducer now changes the electric energy into electromagnetic waves that travel through space to the recipient in the phone conversation.

You might be interested in
Which group of elements reacts violent with elements from Group 1
castortr0y [4]
The halogen react aggressively with the alkali metals in group 1
4 0
3 years ago
If an increase in temperature accompanies a reaction, what occurred?
son4ous [18]
I believe the correct response would be A. Energy being absorbed, as temperature increase must for instance occur for the reaction to occur, this increase in temperature for the reacting substances indicates energy being absorbed as the reaction proceeds.
3 0
3 years ago
Read 2 more answers
What happens to the temperature and density of the material between points B and C?
makvit [3.9K]

Answer:

Temperature decreases and density increases

Explanation:

Let us remember that density of a material increases as the temperature of the material decreases. So the cooler a material becomes, the denser it becomes also.

Between points B and C, the material rapidly cools down and the temperature decreases accordingly. This ultimately results in an increase in density since cooler materials are denser than hot materials.

7 0
3 years ago
If a projectile flies 387 meters north in 8.5 seconds, what is its velocity?
Eddi Din [679]
Ok so velocity is speed but includes direction. The formula for both speed velocity is distance over time. so the equation is 387 over 8.5. That equals 45.5294117647 which can be rounded to 46.
4 0
3 years ago
Write the chemical equation for the reaction whose enthalpy change is the standard enthalpy of formation of fructose, C6H12O6(s)
ziro4ka [17]

Answer:

6 C(s) + 6_{H2}(g) + 3_{O2}(g)

Explanation:

The chemical equation of the reaction is as follows

According to the question, data provided in the question is shown below:

C_6H_12O_6

The C = Carbon and its standard state is Graphite C(s)

The H = Hydrogen and its standard state is H_2 (s)

The O = Oxygen and its standard state is O_2 (s)

Now the chemical equation for the reaction is

6 C(s) + 6_{H2}(g) + 3_{O2}(g)

5 0
4 years ago
Other questions:
  • Which of these equations is balanced? a. 3 H2SO4 + 2Al → Al2(SO4)3 + 3H2 b. 2KCl + Pb(NO3)2 → KNO3 + PbCl2 a b a and b neither
    15·2 answers
  • What pressure, in atmospheres, is exerted on the body of a diver if he is 38 ft below the surface of the water when atmospheric
    6·1 answer
  • PLEASE HELP!!!!!!!! All of the following are common air pollutants that can be damaging to the environment except
    6·2 answers
  • Which is considered a modern space exploration project rather than a historical or future project?
    14·2 answers
  • Which is a spectator ion from the following complete ionic equation:
    7·2 answers
  • At a certain temperature this reaction follows second-order kinetics with a rate constant of 14.1 M⁻¹s⁻¹ : ---> 2SO₃g + 2SO₂g
    13·1 answer
  • how much heat in joules would be required to raise the temperature of 40 g of aluminum (CAL = .21 cal g/C) from 19. c to 31.2 c
    12·1 answer
  • Which process creates two new cells from one existing cell in order to maintain homeostasis? (4 points) a Cell division b Cellul
    7·1 answer
  • What is a molecular formula
    6·1 answer
  • Calculate the volume of a sample of aluminum that has a mass of 3.057 kg. The density of aluminum is 2.70 g/cm3 (taking into con
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!