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2 years ago

What do most scientists think causes Bovine Spongiform Encephalopathy (Mad Cow Disease)?

2 answers:

8 0

Most scientists believe that it is caused by an abnormal protein in brain tissue, called a prion, that can cause fatal disease when eaten.

Katena32 [7]2 years ago

3 0

Additionally, these types of proteins, as mentioned above, are caused by mutations in its actual production. Because all proteins have a specific shape, if one protein's shape is damaged in some way, then they will not be able to fulfill their purpose. In this case, the brain disease you mentioned has mutated and malformed proteins that are normally found to begin near the blood vessels in the neck.

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4. X-ray radiation from diffraction and fluorescence instruments is a) Not very dangerous because the X-rays are absorbed in the

Dahasolnce [82]

Answer:

c) Very dangerous and users must not override devices designed to protect from exposures.

Explanation:

X-ray is a form of high energy electromagnetic radiation and are part of the electromagnetic spectrum.

X-ray radiation from diffraction and fluorescence instruments is very dangerous because of their high energy and wavelength.

Hence, users must not override devices designed to protect from exposures. The best shielding device to protect one from exposure is Lead.

7 0

2 years ago

As light from a star spreads out and weakens, do gaps form between the photons?<br>

Zolol [24]

Answer:

There are no gaps in space between the photons as they travel. If you were to look at a wave then you'd come to a conclusion that indeed that there aren't any gaps unless they are specifically placed.The light from a distance star indeed spreads out and weakens as it travels, but this just reduces the wave strength and does not introduce gaps.

3 0

3 years ago

4.) The diagram to the right is the orbit of a comet:

Brilliant_brown [7]

Answer: This is what I found hope it helps

Explanation:

6 0

3 years ago

Mimas, a moon of Saturn, has an orbital radius of 1.62 × 108 m and an orbital period of about 23.21 h. Use Newton’s version of K

Drupady [299]

Answer:

$3.60432\times 10^{26}\ kg$

Explanation:

a = Orbital radius = $1.62\times 10^8\ m$

T = Orbital period = 23.21 hours

G = Gravitational constant = 6.67 × 10⁻¹¹ m³/kgs²

From Kepler's third law we get

$M=\frac{4\pi^2a^3}{GT^2}\\\Rightarrow M=\frac{4\pi^2\times (1.62\times 10^8)^3}{6.67\times 10^{-11}\times (23.21\times 3600)^2}\\\Rightarrow M=3.60432\times 10^{26}\ kg$

From the given data the mass of Saturn is $3.60432\times 10^{26}\ kg$

8 0

2 years ago

Julie finds a snail on the sidewalk and wants to know whether or not the snail moves throughout the day. She places a single mar

Sergeu [11.5K]

To make a base line mark to know where she started measuring the snails movement, at the end of the day she can measure from her first line to her last to see how far the snail went.
Hope this helped!

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8 0

2 years ago