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3 years ago

What are the negative aspects of using nuclear energy? Select all that apply.

Physics

2 answers:

Ugo [173]3 years ago

8 0

Answer:

It creates solid radioactive waste that has to be stored safely over the long term, Produces a great deal of air pollution, Risk of danger at reactor sites

Explanation:

fomenos3 years ago

4 0

Answer: the firsts three answers

Explanation:

the first I'm sure because the radiactive waste is radioactive so it's dangerous to the living beings so we need to store in a secure zone.

To produce the energy there is a process in that process the nuclear central throws toxic fumes to the air

It's dangerous to be in the reactor sites without protection because is the most radiactive site in the central

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Jonah finds a rusty nail outside. The nail is an example of _____.

Pani-rosa [81]

I believe the correct answer from the choices listed above is option A. Jonah finds a rusty nail outside. The nail is an example of chemical weathering. Rusting of nail is a result of reaction of iron with water in air. Hope this answers the question. Have a nice day.

3 0

3 years ago

Read 2 more answers

What mass of silver will occupy a volume of 87.75 mL? The density of silver is 10.49 g/mL.

Anastaziya [24]

Answer:

The mass of silver that will occupy a volume of 87.75 mL is 920.5 grams.

Explanation:

Density is defined as the property that matter, whether solid, liquid or gas, has to compress into a given space. In other words, density is a quantity that allows us to measure the amount of mass in a certain volume of a substance. Then, the expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:

$density=\frac{mass}{volume}$

So the density of silver is 10.49 g / mL indicates that 10.49 g occupies a volume of 1 mL. Then a rule of three can be applied in the following way: if in 1 mL a mass of 10.49 g is occupied, in 87.75 mL how much mass will it occupy?

$mass=\frac{87.75 mL*10.49 g}{1 mL}$

mass= 920.5 g

The mass of silver that will occupy a volume of 87.75 mL is 920.5 grams.

5 0

3 years ago

A car approaches you at a constant speed, sounding its horn, and you hear a frequency of 76 Hz. After the car goes by, you hear

Talja [164]

Answer:

70.07 Hz

Explanation:

Since the sound is moving away from the observer then

$f_o = f_s\frac {(v+vs)}{v}$ and $f_o = f_s\frac {(v-vs)}{v}$ when moving towards observer

With $f_o$ of 76 then taking speed in air as 343 m/s we have

$76 = f_s\times\frac {(343-vs)}{343}$

$f_s=\frac {343\times 76}{343-v_s}$

Similarly, with $f_o$ of 65 we have

$65 = f_s\times\frac {(343+vs)}{343}\\f_s=\frac {343\times 65}{343+v_s}$

Now

$f_s=\frac {343\times 65}{343+v_s}=\frac {343\times 76}{343-v_s}$

v_s=27.76 m/s

Substituting the above into any of the first two equations then we obtain

$f_s=70.07 Hz$

4 0

3 years ago

What happens to the sum of the ball's kinetic energy and potential energy as the ball rolls from point A to point E? Assume ther

sesenic [268]

Answer:

C. The sum remains the same.

Explanation:

The sum of the kinetic and potential energy remains the same as the all rolls from point A to E.

We know this based on the law of conservation of energy that is in play within the system.

The law of conservation of energy states that "energy is neither created nor destroyed within a system but transformed from one form to another".

At the top of the potential energy is maximum
As the ball rolls down, the potential energy is converted to kinetic energy.
Potential energy is due to the position of a body
Kinetic energy is due to the the motion of the body

7 0

3 years ago

Which person would experience the greatest force of impact in a sudden collision? A 200 lb. man traveling 20 mph b 150 lb. woman

Alisiya [41]

Answer:

The 150 lb woman at 30 mph would experience the greatest force of impact in a sudden collision.

Explanation:

Momentum

The force of impact exerted on an moving object that suddenly stops or changes its movement is measures by the physics magnitude called Impulse, which can be computed with the formula

$I=F.t$

Where F is the force and t is the time that force acts to produce the impact on the object. The impulse is also defined as the change in the momentum of the object:

$I=\Delta p=p_2-p_1$

Or equivalently

$I=m(v_2-v_1)$

The question describes four situations where different persons and object suffer impact that make them stop from their moving state. Thus $v_2=0$ and the impulse is