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Dafna1 [17]
3 years ago
12

Describe one way in which uranium is disposed of.

Chemistry
1 answer:
Romashka-Z-Leto [24]3 years ago
7 0

Answer:

In the oxide form, uranium can be disposed of as low-level radioactive waste at an approved disposal facility. Approximately 350,000 tons of anhydrous HF are used annually in the United States.

Explanation:

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Under what circumstances does a product or work lose its original copyright protection?
max2010maxim [7]

Copyright is a form intellectual property protection. This serves to protect the original works of authorship including literary, musical, and dramatic works. This differs to patent since copyright is for artistic works and patent is for inventions.

A copyright lifespan is equivalent to the life of the author plus 70 years. The only circumstance in which the author loses the copyright protection is when the product is sold to another person/company.


Answer: <span>The author sells the work to another person/company</span>

3 0
3 years ago
The mobility and carrier density of Al are 12 cm2/Vs and 1.98×1023 cm−3 , respectively. The mobility and carrier density of Cu a
Misha Larkins [42]

Answer:

R aluminium = 2.63x10^-6 Ω*cm

Rcopper = 1.7 x10^-6 Ω*cm

I would use Cu as interconnections in advanced CMOS nodes.

Explanation:

the conductivity formula equals:

σ = n*g*u

n = carrier concentration

u = mobility

g = charge of carrier

The resistivity is equal to:

R = 1/σ

For the aluminium, we have:

g = 1.602x10^-19 C

R = 1/(1.98x10^23 * 1.602x10^-19 * 12 = 2.63x10^-6 Ω*cm

For copper:

R = 1/(8.5x10^22 * 1.602x10^-19 * 43.2) = 1.7 x10^-6 Ω*cm

According to the calculations found for both resistivities, I would use Cu as interconnections in advanced CMOS nodes, since copper has a lower resistivity and therefore, copper conducts electricity better.

8 0
3 years ago
A light strikes the boundary of a medium at a 45 degree angle. Instead of entering the second medium, the light reflects back in
Dahasolnce [82]

Answer:

D It must be equal to 1.00

Explanation:

The refraction in the second medium must be equal to 1. The refraction index is given as the ration of the angle of incidence to the angle of refraction. This is given as a fraction. In other words:

\frac{sin\theta _{i} }{sin\theta _{r} }  = n

where Θ₁ and Θ₂ are angles of incidence an refraction, and n is the refractive index.

At a critical angle, the refraction is equal to the reflection inside the medium. This results in a phenomenon called total internal reflection where light is reflected internally in the medium.

6 0
3 years ago
Balanced forces cannot accelerate an object<br><br> True<br><br> False
Zielflug [23.3K]

True Balance forces can not change the motion or direction of an object.

5 0
3 years ago
Read 2 more answers
Humans absorb oxygen from the air they breathe in and exhale carbon dioxide gas, CO2.Carbon dioxide gas is
Alex

Answer:

A

an element made of carbon and oxygen atoms.

7 0
3 years ago
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