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
scoundrel [369]
3 years ago
10

Which best describes a similarity between power plants that use water as an energy source and those that use wind as an energy s

ource?
A.Both use heat from within Earth to produce electricity.
B.Both use kinetic energy to produce electricity.
C.Both use resources that are not abundant.
D.Both use resources that produce a lot of air pollution.
Physics
2 answers:
stiks02 [169]3 years ago
6 0

The correct answer to the question is : B) Both use kinetic energy to produce electricity.

EXPLANATION:

Hydroelectricity is produced when the kinetic energy of the falling water rotates the turbine. The generator associated with the turbine is rotated, and electric energy is produced due to electric magnetic induction.

In case of power plants in which wind is used as energy source, the same process happens. The kinetic energy of wind rotates the propellers of wind turbine which in turn produces electric energy.

Hence, the correct similarity between them is statement B.

disa [49]3 years ago
3 0
The hydropower plant and wind turbines both uses kinetic energy to produce mechanical power and convert the mechanical energy using a generator to an electrical energy. They both have the process to produce energy but they differ in the source the hydropower plant uses water to whit the wind turbines power plant uses wind. Therefore the answer is letter B. 
You might be interested in
A ball is dropped from rest at point O. After falling for some time, it passes by a window of height 3.3 m and it does so in 0.2
stiv31 [10]

Answer:

Speed at which the ball passes the window’s top = 10.89 m/s

Explanation:

Height of window = 3.3 m

Time took to cover window = 0.27 s

Initial velocity, u = 0m/s

We have equation of motion s = ut + 0.5at²

For the top of window (position A)

                     s_A=0\times t_A+0.5\times 9.81t_A^2\\\\s_A=4.905t_A^2

For the bottom of window (position B)

                     s_B=0\times t_B+0.5\times 9.81t_B^2\\\\s_A=4.905t_B^2

\texttt{Height of window=}s_B-s_A=3.3\\\\4.905t_B^2-4.905t_A^2=3.3\\\\t_B^2-t_A^2=0.673

We also have

                 t_B-t_A=0.27

Solving

         t_B=0.27+t_A\\\\(0.27+t_A)^2-t_A^2=0.673\\\\t_A^2+0.54t_A+0.0729-t_A^2=0.673\\\\t_A=1.11s\\\\t_B=0.27+1.11=1.38s

So after 1.11 seconds ball reaches at top of window,

       We have equation of motion v = u + at

                                     v_A=0+9.81\times 1.11=10.89m/s

Speed at which the ball passes the window’s top = 10.89 m/s                

7 0
3 years ago
What is the ultimate source of energy for an ecosystem?
Romashka-Z-Leto [24]

Answer:

Obviously the answer is Sun...

4 0
3 years ago
What is the main difference between velocity and speed?
Marina86 [1]
Speed is scalar, meaning it's only going to be like 74 mph, doesn't matter which direction. Velocity is a vector, meaning it has direction. You can go -74mph when talking about velocity, not speed.
4 0
3 years ago
choose the correct anwer 9: the range of the gravitional force is given by A: 10_2m B:10_15m C: infinite D: 10_10m​
frosja888 [35]

Answer:

The answer is C

Explanation:

The magnitude of the gravitational force depends inversely on the square of the radial distance between the centers of the two masses. Thus, essentially, the force can only fall to zero, when the denominator that is r becomes infinite.

6 0
3 years ago
Jimena is stopped at a red light. When the light turns green, she
Ludmilka [50]
First one accelerated
8 0
2 years ago
Other questions:
  • Why can gases and liquids both transmit heat by convection?
    8·1 answer
  • A tennis ball is dropped from a height of 10.0 m. It rebounds off the floor and comes up to a height of only 4.00 m on its first
    8·1 answer
  • Ronald wants to see if a new shower cleaner works better in removing soap than his old cleaner.  He uses the new cleaner on one
    8·1 answer
  • PLZ ANSWER ASAP IF YOU KNOW THIS...At the county fair, Carrie and Sam climbed up on the carousel horses. Around and around they
    14·1 answer
  • Which of these pieces of evidence did NOT help in the development of the theory of plate tectonics?
    9·1 answer
  • Which word describes a goal that is poorly written?
    5·2 answers
  • A car goes from rest to a speed of 90 km/h in 10 seconds . What is the car's acceleration in m/s²
    14·1 answer
  • HELP ASAP!! WILL TRY TO GIVE BRAINLIEST
    5·1 answer
  • How are you going to identify a tool that is still functional​
    13·1 answer
  • When Danny Diver who weighs 500 N steps off a diving board 10 m above the water, he hits the water with kinetic energy of
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!