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Finger [1]
3 years ago
7

A. List at least 5 examples of events or factors that could cause extinction. 

Physics
2 answers:
baherus [9]3 years ago
8 0
Disease
Lack of natural reourses
war
asteroid
Polution.

sveticcg [70]3 years ago
4 0
My answer is :
- Pollution
- Epidemic/Disease
- Climate change or global warming
- Habitat Degredation
- Catastrophic event as a volcanic eruption
- Asteroids impacts
- Sea level falls
- tsunamis.

Hope this helps !

Photon
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Hehe i hate being a single girl....what physical properties dose europium have
sasho [114]

Answer:

Europium has a bright shiny surface. it's steel grey and has a melting point of 826 degree Celsius and a boiling point of about 1,489 degree Celsius.

Explanation:

the density is 5.24 grams per cubic centimeter.

3 0
2 years ago
An emission ray has a frequency of 5.10 × 10¹Ê Hz. Given that the speed of light is 2.998 × 10§ m/s, what is the wavelength of t
scoundrel [369]
The answer is 5.88 · 10⁻⁷<span> m.</span>

To calculate this we will use the light equation:

v = λ · f,
where:
v - the speed of light (units: m/s)
<span>λ - the wavelength of the ray (units: m)
</span>f - the frequency of the ray (units: Hz = 1/s <span>since Hz means cycles per second (f=1/T))
</span>
It is given:
f = 5.10 · 10¹⁴ Hz = 5.10 · 10¹⁴<span> 1/s
v = 2.998 </span>· 10⁸<span> m/s
</span><span>λ = ?
</span>
If v = λ · f, then λ = v ÷ f:
λ = 2.998 · 10⁸ m/s ÷ 5.10 · 10¹⁴ 1/s
   = 0.588 · 10⁸⁻¹⁴ · m
   = 0.588 · 10⁻⁶ m
   = 5.88 · 10⁻⁷ m
6 0
3 years ago
When might i travel at a low velocity but high acceleration?
SCORPION-xisa [38]
Maybe when you ice-skate 10 times per second around a 1-foot circle.
7 0
3 years ago
Four point charges of magnitudes 3q q 2q and 4q are arranged in the corners of a square of side length L.The charge q creates a
ella [17]

Answer:

d. 0V

Explanation:

The magnitude of four point charges are +3q, -q, +2q and -4q. I think you forget to mention the signs.

As we know that the potential due to the point charge that has traveled the distance d can be represented mathematically as,

V = k\frac{q}{r}

k = 1/4λε = 9×10^{9} Nm²/C²

Now as it is mentioned in the question that all four charges are arranged in the corners of a square so there distance from the center is same. We can rewrite the above potential equation as follows.

V = \frac{k}{d} (q_{1} + q_{2}  +q_{3} +q_{4} )        (1)

We can find out d by the pythagoras theorem, as we are dealing with square so d is a semi diagonal.

d = \sqrt{\frac{L^{2} }{4}+\frac{L^{2} }{4}  } = \frac{\sqrt{2} }{2} L

by putting all values in equation (1)

V = \frac{9*10^{9} }{\frac{\sqrt{2} }{2} L } (+3q-q+2q-4q)

V = 0V

3 0
3 years ago
What ocean floor feature is found where crust is produced
charle [14.2K]
Molten rock material wells up from the underlying mantle into the gap between the diverging plates and solidifies into oceanic crust, thereby creating new ocean floor. At the deep-sea trenches, two plates converge, with one plate sliding down under the other into the mantle where it is melted.:)
6 0
3 years ago
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