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
vodka [1.7K]
2 years ago
5

WAVES AND SOUND

Physics
1 answer:
lawyer [7]2 years ago
6 0

Answer:

i think it is B

Explanation:

You might be interested in
A 34.0 %-efficient electric power plant produces 800 MW of electric power and discharges waste heat into 20∘C ocean water. Suppo
mojhsa [17]

Answer:

77647

Explanation:

\eta = Efficiency = 34%

Power used in 1 home = 0.02 MW

Total power is

P=\dfrac{800}{\eta}\\\Rightarrow P=\dfrac{800}{0.34}\\\Rightarrow P=2352.94117\ MW

Waste of power

2352.94117-800=1552.94117\ W

Number of homes would be given by

n=\dfrac{1552.94117}{0.02}=77647.0585\ homes

The number of homes that could be heated with the waste heat of this one power plant is 77647

8 0
2 years ago
If a stereo has a dial that changes the volume of sounds the stereo makes what is the dial doing
vredina [299]
The volume dial is acting as a voltage divider or a variable resistor. 
4 0
3 years ago
Read 2 more answers
All of the fallowing are possible sources of error in a scientific investigation exept for
Whitepunk [10]

c adding research resources during an investigation

6 0
3 years ago
What kind of weather is signaled by cumulus clouds
Novay_Z [31]
Cumulonimbus clouds are associated by severe weather. They are thunderstorm clouds that bring heavy rain, snow, hail, lightning and even tornadoes.
5 0
3 years ago
Options: A.) 10 N B.) 15 N C.) 25 N D.) 35N
Lady_Fox [76]

Given:

F_gravity = 10 N

F_tension = 25 N

Let's find the net centripetal force exterted on the ball.

Apply the formula:

\sum ^{}_{}F_{\text{net}}=F_1+F_2=F_{centripetal}

From the given figure, the force acting towards the circular path will be positive, while the force which points directly away from the center is negative.

Hence, the tensional force is positive while the gravitational force is negative.

Thus, we have:

F_{\text{net}}=F_{\text{centripetal}}=F_{tension}-F_{gravity}=25N-10N=15N

Therefore, the net centripetal force exterted on the ball is 15 N.

ANSWER:

15 N

7 0
11 months ago
Other questions:
  • Can anyone give me the description of the element mercury is positioned on the periodic table of elements and a list of other el
    15·1 answer
  • He lower the frequency of the wave the ____________ it will have.
    13·1 answer
  • You perform an experiment to measure the speed of a car over time. The results are shown in the graph below. What is the best in
    12·2 answers
  • It is less expensive to mine minerals from deep-water deposits than from continental shelf deposits. Please select the best answ
    5·2 answers
  • When the skater starts 7 mm above the ground, how does the speed of the skater at the bottom of the track compare to the speed o
    11·1 answer
  • 1. While driving to Palm Desert you notice that some of the windmills near the freeway are spinning 20 times per minute. The len
    6·1 answer
  • When training to increase physical fitness, adaptation occurs....
    7·2 answers
  • which way would 2 negatively charged balloons naturally move? what would that do to the amount of potential energy stored in the
    11·1 answer
  • Only 2 questions plz answer.
    6·2 answers
  • An object is thrown upward with an initial velocity of 32.1 m/s. When the object reaches it maximum height, it is true of the ac
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!