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
Viktor [21]
3 years ago
15

What happens when electrical energy is used to power stereo speakers? A. Energy is neither lost nor gained as electrical energy

is transformed into the energy of sound. B. Energy is gained as electrical energy transforms into the energy of sound. C. Energy is lost as electrical energy transforms into the energy of sound. D. Energy is neither lost nor gained as sound energy transforms into electrical energy.
Physics
1 answer:
Viktor [21]3 years ago
8 0

Since energy can neither be created nor destroyed and it just changes from one form to another...so... A. Energy is neither lost nor gained as electrical energy is transformed into the energy of sound.

You might be interested in
Which of the following is a derived unit?<br><br> ampere<br> newton<br> second<br> kilogram
Soloha48 [4]

Newton is your answer.

ampere, second, kilograms, are all base units.

hope this helps

5 0
3 years ago
What is the equivalent resistance of the circuit?
Kaylis [27]

Answer:

80 Ω.

Explanation:

In this circuit the resistances are in series.The equivalent resistance of a series circuit is equal to the sum of the resistances. Req= 60 + 20 = 80 Ω.

8 0
3 years ago
If a bow holds 500J of potential energy as the arrow is pulled back, how much kinetic energy will the arrow have after it has be
ale4655 [162]

Answer:

500J

Explanation:

The arrow will have an energy of 500J after it has been released from its state of rest.

This is compliance with the law of conservation of energy which states that "in every system, energy is neither created nor destroyed but transformed from one form to another".

  • The energy at rest which is the potential energy is 500J
  • This energy will be converted to kinetic energy in total after the arrow has been released.
  • This way, no energy is lost and we can account for the energy transformations occurring.
4 0
3 years ago
(1) Which appliance is designed to transfer electrical energy to kinetic energy?
sweet-ann [11.9K]

Answer:

bb kettle

Explanation:

it transfres electricsl to kinetic

8 0
3 years ago
An engineer can increase the magnitude of the magnification of a compound microscope by
jok3333 [9.3K]

Answer:

Option B

Explanation:

Magnification of Microscope is  

M = M_o \times M_e

Mo= Magnification of objective lens and

Me= magnification of the eyepiece.  

Both magnifications( of objective and eyepiece) are inversely proportional to the focal length.  

Magnification,  

M\ \alpha\ \dfrac{1}{f}

when the focal length is less magnification will be high and when the magnification is the low focal length of the microscope will be more.

Thus. Magnification will increase by decreasing the focal length.

The correct answer is Option B i.e. using shorter focal length

6 0
3 years ago
Other questions:
  • A movie theater is 4 kilometers east and 2 kilometers south of your house.
    13·2 answers
  • The effective nuclear charge experienced by the outermost electron of Na is different than the effective nuclear charge experien
    10·2 answers
  • What acceleration is produced when a 12-N force is exerted on a 3-kg object?
    6·1 answer
  • A student performs an exothermic reaction in a beaker and measures the temperature. If the thermometer initially reads 35 degree
    11·2 answers
  • Identify a situation in which you would want to have a high
    6·2 answers
  • A right triangle has base b = 100 plusminus 1 ft and adjacent angle theta = 30 degree plusminus 0.5 degree. Calculate the height
    12·1 answer
  • a wire with mass per unit length 75 g/m runs horizontally at right angles to a uniform horizontal 0.12 T magnetic field. what am
    7·1 answer
  • If a CD player uses a 12-V battery and draws 2.0 amps of current, how much power does it use?
    5·1 answer
  • 20 points and brainliest‼️‼️‼️‼️
    8·1 answer
  • What group is Ne in? What is its period?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!