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padilas [110]
3 years ago
14

Electricity produced by waterpower is ____.

Physics
2 answers:
Vikentia [17]3 years ago
7 0

Answer:

Option (D)

Explanation:

The plant in which the electricity is produced by use of water is called hydroelectric power station.

Water is stored in huge dams and then allow to fall from a great height. The potential energy of stored water is converted into kinetic energy of the flowing water. Then this kinetic energy rotates the turbines and converted into mechanical energy and then finally the coil of generator rotates and electric energy is produced.

kogti [31]3 years ago
6 0
D. Hydroelectric (hydro = water)
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What properties of radio waves makes them suitable for sending signals in mountainous regions?
marusya05 [52]

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3 0
3 years ago
A car traveling at 30 m/s drives off a cliff that is 50 meters high? How far away does it land?
Semenov [28]

Answer:

The maximum range R_{max}= 132. 72 m

Explanation:

Given,

The initial velocity of the car, u = 30 m/s

The height of the cliff, h = 50 m

Let the car drives off the cliff with a horizontal velocity of 30 m/s.

The formula for a projectile that is projected from a height h from the ground is given by the relation

                                R_{max}= \frac{u}{g}\sqrt{u^{2} + 2gh }  m

Where,

                          g - acceleration due to gravity

Substituting the values in the above equation

                   R_{max}= \frac{30}{9.8}\sqrt{30^{2} + 2X9.8X50 }  

                                          = 132.72  m

Hence, the car lands at a distance, R_{max}= 132. 72 m            

3 0
3 years ago
Which weather event is capable of destroying homes and uprooting trees due to a low pressure area at its center
Bond [772]

You're talking about a <em>tornado</em>.

It's not so much the low pressure that's so dangerous in the center of a tornado.  It's more a matter of the high winds that are <em>caused </em>by the low pressure.

7 0
3 years ago
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Answer:

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(b) Iron is used in electromagnets because steel retained magnetic properties after the power was turned off, but in the iron, the paper clips dropped off right away.

6 0
2 years ago
What is the wavelength of a wave that has a speed of 350 meters/second and a frequency of 140 hertz?
sergey [27]

Answer:2.5m

Explanation:

3 0
2 years ago
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