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julsineya [31]
3 years ago
13

Which statement best describes a risk associated with using radioisotopes in nuclear reactors? A Radioisotopes are very expensiv

e and do not produce the amount of energy that coal and oil produce. B If the radiation were to leak out of the reactors, it could produce an abundance of new plants and organisms. C Radioisotopes are extremely difficult to obtain and can only be retrieved from the Sun. D If the radiation were to leak out of the reactors, it could cause significant damage to living organisms.
Physics
1 answer:
Helga [31]3 years ago
3 0
The correct answer is:
<span>D If the radiation were to leak out of the reactors, it could cause significant damage to living organisms.

In fact, ionizing radiation that leaks out from nuclear reactor is able to damage the DNA of living organisms, causing mutations and/or diseases like cancer. </span>
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The picture below shows a person exploring an underwater cave in Florida.
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Underwater caves in Florida are primarily formed due to the abundance of limestone layers just situated below the ground, forming the "Floridan Aquifer." Layers of these limestones are believed to be thousands of meters thick. When rainwater is being seeped into the ground, it softens the calcite present in limestones due to its acidic nature until it is dissolved. This leads to the formation of cavities and tunnels which eventually becomes an interconnected network of passages over time. As water continues flowing through these passages, which builds up from the bottom of these cavernous empty spaces, underwater caves are then formed. Therefore, the first choice is the answer.
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4 years ago
1.33 m^3 of fluid flows out of a pipe in 24.5 s. the fluid leaves the pipe at 3.55 m/s. what is the area of the pipe. (unit=m^2)
Margaret [11]

Answer:

0.015meter^{2}

Explanation:

Total volume of water coming out = 1.33meter^{3}

Also volume = Cross sectional area*Length covered

Length covered = Velocity *time

                           =24.5*3.55

                           =86.97 meter

Let the cross sectional area be A.

1.33 = 86.97*A

A =0.015meter^{2}

3 0
4 years ago
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"Whereas the velocity of a wind-blown wave can be calculated if you know its wavelength, what piece of information do you need t
Artist 52 [7]

Answer: Frequency

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v=\lambda\cdot{f}

Hence, the frequency associated with the tsunami is needed to calculate the velocity.

7 0
3 years ago
A fisherman fishing from a pier observes that the float on his line bobs up and down, taking 2.4 s to move from its highest to i
mars1129 [50]

Answer:

(c) 10m/s

Explanation:

to find the speed of the waves you can use the following formula:

v=\frac{\lambda}{T}

λ: wavelength of the wave

T: period

the wavelength is the distance between crests = 48m

the period is the time of a complete oscillation of the wave. In this case you have that the float takes 2.4 s to go from its highest to the lowest point. The period will be twice that time:

T = 2(2.4s)=4.8s

by replacing you obtain:

v=\frac{48m}{4.8s}=10\frac{m}{s}

the answer is (c) 10m/s

4 0
3 years ago
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