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4 years ago

The greatest problem facing the use of nuclear power plants is:

Physics

2 answers:

Dominik [7]4 years ago

7 0

How to dispose of and safely store the active fission products in the spent fuel

levacccp [35]4 years ago

6 0

Answer:

1) Accidents in the nuclear plants

2) Disposal of waste materials released from this power plants.

Explanation:

The use of nuclear power plant is quite efficient, but it contains radioactive elements that are highly radioactive and there occurs continuous emission of radiations that are harmful for health. There is no release of any green house gas and fossil fuels are not burnt.

The problems associated with the use of nuclear power plant are as follow-

Accidents in the plants- In these nuclear power plants, operations are carried out in a very careful manner, because the use of these radioactive elements releases harmful radiations, and accidents happens unexpectedly.
Disposal of waste materials- This nuclear plants releases a huge amount of waste materials that contains some amount of radioactive toxic element that are exposed to the environment causing harm to the various life forms. So it is still not solved how to handle and store this waste products.

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What is the wavelength of the third harmonic in a 4.5-m-long pipe that is closed at one end?

lisov135 [29]

Answer:

Wavelength of sound in the pipe is 6.0 m

Explanation:

As we know that closed pipe is given to us so here at open end it will form antinode while at closed end it will form Node

Here we know that in closed pipes on odd harmonics will exist

so here for third harmonic we have

$L = \frac{\lambda}{4} + \frac{\lambda}{2}$

where L = length of the pipe

so we have

$4.5 = \frac{3\lambda}{4}$

$\lambda = 6.0 m$

5 0

3 years ago

While skateboarding at 19 km/h, Alana throws a tennis ball at 11 km/h to her friend Oliver. If Alana is the reference frame, the

Delvig [45]

8 km/h I think good luck if it's wrong

8 0

3 years ago

Read 2 more answers

“Centi” is an example of… a. a metric base unit b. a metric unit c. a prefix d. a bug

klio [65]

it's an example of a prefix

4 0

3 years ago

Read 2 more answers

A laser is used to make a CD or DVD by _____.

boyakko [2]

Answer:

Explanation:

Inside your CD player, there is a miniature laser beam called a semiconductor diode laser and a small photoelectric cell an electronic light detector. The laser flashes up onto the shiny side of the CD, bouncing off the pattern of pits and lands on the disc.

7 0

3 years ago

A satellite is orbiting the Earth in a circular orbit of radius r. Its frequency is independent of its height above the surface

Pie

Answer:

a. TRUE

Explanation:

When a satellite is launched to orbit around earth, it has to produce its own artificial gravity by performing rotations. The frequency of this rotation is given by the following formula:

f = √[ac/4πR²]

where,

f = frequency

ac = centripetal acceleration

R = Radius of the satellite

Therefore, it is clear from this formula that the frequency of rotation of the satellite is independent of its height above the surface of earth. So, the correct option is:

a. TRUE

5 0

3 years ago