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
ValentinkaMS [17]
3 years ago
6

What device is like the reverse of an electric motor?

Physics
2 answers:
Anarel [89]3 years ago
8 0

Answer:

A

Explanation:

A battery derives its energy chemically. D is not the answer.

C develops its energy by burning fuel and transferring the heat energy to make water into steam which is chemical/mechanical. Not C

B A Tesla Coil produces a very high voltage and a low current. Not B.

The answer left is A. It converts mechanical energy into electrical energy. It is the only device listed that does this.

nignag [31]3 years ago
6 0

Answer:

a.  Generator

Explanation:

You might be interested in
What is the difference between condensation and conduction
aniked [119]

Answer:

Convection is the heat transfer due to the bulk movement of molecules within fluids such as gases and liquids, including molten rock. Condensation is the process by which water vapor in the air is changed into liquid water. Condensation is crucial to the water cycle because it is responsible for the formation of clouds. These clouds may produce precipitation, which is the primary route for water to return to the Earth's surface within the water cycle.

Explanation:

Their a difference....... A huge One

8 0
4 years ago
Which two forces are always equal and opposite for an object on a surface?
Kisachek [45]

Answer:

Suppose any object with mass in our planet.

The object will be affected by the gravitational force, that pulls the object down. Now, a table in your dining room is also affected by this force, but the table is in a surface (the ground) and it does not move.

We know that if an object does not move, then the net force acting on it is equal to zero, this means that there is a force equal and opposite ot the gravitational force.

This force is the normal force, that the ground applies on the table. This force comes as a "response" to the table pushing the ground (By 3rd Newton's law).

So two forces that are always equal and opposite are the forces caused by this law.

5 0
3 years ago
Help meeeeeeeeeeee<br>what is the rheostat and what its ruleeee??​
andre [41]

Answer:

<h2><u>Rheostat:</u></h2>

=> Rheostat is an electric device used as a variable resistance, like the regulator of the fan. It is used to change the electric resistance in the electric circuit.

<h2><u>Principle / Rule:</u></h2>

=> Rheostat works on the principle of Ohm’s law. Ohm’s law states that current in a circuit is inversely proportional to the resistance at the given temperature.

\infty  \infty  \infty

8 0
3 years ago
A hard drive disk rotates at 7200 rpm. The disk has a diameter of 5.1 in (13 cm). What is the speed of a point 6.0 cm from the c
ExtremeBDS [4]

Answer:

The speed will be "3.4×10⁴ m/s²".

Explanation:

The given values are:

Angular speed,

w = 7200 rpm

i.e.,

  = 7200 \times  \frac{2 \pi}{60}

  = 753.6 \ rad/s

Speed from the center,

r = 6.0 cm

As we know,

⇒  Linear speed, v=wr

On putting the estimated values, we get

                               =753.6\times 0.06

                               =45.216 \ m

Now,

Acceleration on disk will be:

⇒  a=\frac{v^2}{r}

       =34074 \ m/s^2

       =3.4\times 10^4 \ m/s^2

3 0
3 years ago
What is (a) the x component and (b) the y component of the net electric field at the square's center
Sav [38]

Answer:

What is (a) the x component and (b) the y component of the net electric field at the square's center

8 0
3 years ago
Other questions:
  • Two skydivers are holding on to each other while falling straight down at a common terminal speed of 52.30 m/s. Suddenly, they p
    15·1 answer
  • Monochromatic electromagnetic radiation illuminates an area of a surface. The electric and magnetic fields of the waves are then
    6·1 answer
  • A balloon filled with helium gas has an average density of Q,-0.41 kg/m'. The density of the air is Qa-1.23 kg/m3. The volume of
    9·1 answer
  • What is the average depth of the oceanic crust? What percentage of our planet does it cover?
    8·1 answer
  • What is the energy stored in food?
    8·1 answer
  • 5. A cable is attached 32.0 m from the base of a flagpole that is about to
    14·1 answer
  • In the following diagrams the larger vector has a magnitude of 10, and the smaller
    8·1 answer
  • What is the mass of a substance that has a density of 5g/ml and the volume of 3ml
    12·1 answer
  • According to x-ray observations, the space between galaxies in a galaxy cluster is?
    13·1 answer
  • If the moon moved closer to the earth, how would the gravitational force between them change?.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!