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
nirvana33 [79]
3 years ago
14

Bettina spoke into a microphone during the school play to increase the sound of her voice so the audience could hear her speak.

The loudness of Bettina’s voice was changed by what type of energy?
Physics
2 answers:
grandymaker [24]3 years ago
7 0
The loudness was increased by the amplifier which converted electrical energy into sound energy.
Sati [7]3 years ago
5 0

C.) Electric Energy

You might be interested in
Which describes the adiabatic process? Check all that apply.
kiruha [24]

Answer:

heat is not absorbed by the system

A rapid shift occurs between gas compression and expansion.

All heat is transformed to work done by the system.

Explanation:

7 0
4 years ago
Read 2 more answers
True or false
Readme [11.4K]

Answer:

true

Explanation:

I believe the answer i chose because the earths atmosphere is mostly made up of different things that causes the earth to interact with human life and also interacts with what's in the atmosphere like energy oxygen carbon dioxide and all the stuff like that i hope its right.

6 0
3 years ago
In what order were the following energy sources<br> discovered by humans
NemiM [27]
There’s no order to go off of...
5 0
3 years ago
HELP!!
QveST [7]

Answer:

Total displacement 155 m

Explanation:

From the question, the formula to apply will be that of cosine rule where:

c=\sqrt{a^2+b^2-2ab*cosC}

where

a= 43 m , b=130m and c =? , <C=28° + 90° =118°

Substituting values in the equation as;

c=\sqrt{43^2+130^2-2*43*130*cos118}

c=\sqrt{1849+16900-11180*-0.46947} \\\\c=\sqrt{1849+16900+5249} \\\\c=\sqrt{23998} \\\\\\c=155m

6 0
3 years ago
How does the amount of atmosphere affect what color the sky appears to be?
weeeeeb [17]
The atmosphere creates a cover over the earth preventing us from seeing space and it’s natural color and the light that is created by the sun reflected on the ocean creates the color that the sky appears to be blue
3 0
3 years ago
Other questions:
  • All gymnosperms lose their leaves in the winter, is this true or false?
    6·2 answers
  • Which of the following terms refers to the flow of energy heat and work?
    10·1 answer
  • Water drops fall from the edge of a roof at a steady rate. a fifth drop starts to fall just as the first drop hits the ground. a
    13·2 answers
  • Rank the pressures from highest to lowest:
    13·1 answer
  • 45 j of 100 j of was used to turn on the television what is the percentage of energy used
    8·2 answers
  • The gas pressure inside a container decreases when
    9·1 answer
  • You pull a sled with a package on it across a snow-covered flat lawn. If you
    13·2 answers
  • A parallel plate capacitor can store
    11·2 answers
  • Which of the following is a vector? <br><br> mass <br><br>time <br><br>acceleration<br><br> speed​
    6·2 answers
  • Tides occur in oceans but not in lakes why?​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!