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
charle [14.2K]
3 years ago
13

How can water be used for energy???

Physics
2 answers:
Alla [95]3 years ago
4 0

Answer:

Water can be used for energy by placing dams in tidal areas.

Explanation:

Hydraulic energy is the energy supplied by the movement of water, in all its forms: waterfalls, rivers, sea currents, tides, waves, etc. This movement can be used directly, for example with a water mill, or more commonly be converted, for example into electrical energy in a hydroelectric plant.

Hydraulic energy is in fact a kinetic energy linked to the movement of water as in ocean currents, rivers, tides, waves or the use of potential energy as in the case of waterfalls and dams.

stellarik [79]3 years ago
3 0
<span>by placing dams in tidal areas. ITS  the only one that has anything to do with water</span>
You might be interested in
If you have 100 W expended over 20 s how much energy did it take?
netineya [11]

Power = (work or energy) / (time)

100 W  =  (energy) / (20 sec)

Energy = 2,000 watt-sec

<em>Energy = 2,000 J</em>

8 0
2 years ago
How long must a simple pendulum be if it is to make exactly one swing per four seconds? (That is, one complete oscillation takes
cricket20 [7]

Answer:

Length of the pendulum will be 3.987 m

Explanation:

We have given time period of the pendulum T = 8 sec

Acceleration due to gravity g=9.81m/sec^2

We have to find the length of the simple pendulum

We know that time period of the simple pendulum is given by

T=2\pi \sqrt{\frac{l}{g}}

8=2\times 3.14 \sqrt{\frac{l}{9.81}}

l=3.987m

So length of the pendulum will be 3.987 m

3 0
2 years ago
A bird lands on a bare copper wire carrying a current of 51
nirvana33 [79]
The resistance of the piece of wire is
R= \frac{\rho L}{A}
where
\rho = 1.68 \cdot 10^{-8}\Omega m is the resistivity of the copper
L=5.1 cm=0.051 m is the length of the piece of wire
A=0.13 cm^2 = 0.13 \cdot 10^{-4} m^2 is the cross sectional area of the wire
By substituting these values, we find the value of R:
R= \frac{\rho L}{A}=6.6 \cdot 10^{-5} \Omega

Then, by using Ohm's law, we find the potential difference between the two points of the wire:
V=IR=(51 A)(6.6 \cdot 10^{-5} \Omega )=3.4 \cdot 10^{-3} V
7 0
3 years ago
A body builder exerts 15 N of force over 3 m. How much work did she do?
tangare [24]
Work done = force x distance

work done = 15 x 3

work done = 45J
4 0
2 years ago
Read 2 more answers
2 / 3
kiruha [24]

Answer:

Explanation:

   

3 0
3 years ago
Other questions:
  • How much force should a mother exert to lift a 5.0-kg child​
    6·1 answer
  • Which of the following is a good electrical conductor?
    9·1 answer
  • The state of matter that has particles in a fixed position, with a definte volume and shape is
    14·1 answer
  • a bottle lying on the windowsill falls off and takes 4.95 seconds to reach the ground. the distance from the windowsill to the g
    10·2 answers
  • Light travels from crown glass (n=1:52) into air (n=1.00). The angle of refraction in
    11·1 answer
  • You are conducting an experiment inside an elevator that can move in a vertical shaft. A load is hung vertically from the ceilin
    15·1 answer
  • What is the scientific method in physics ? <br><br>grade 9​
    14·1 answer
  • A skateboarder wants to cross a large playground and notices that there are large shapes painted on its asphalt surface. One sha
    7·1 answer
  • A temperature of 34ºF is equal to ____________________ kelvin.
    8·1 answer
  • Find the energy u of the capacitor in terms of c and q by using the definition of capacitance and the formula for the energy in
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!