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MatroZZZ [7]
3 years ago
12

Anything that has volume or mass

Physics
1 answer:
irinina [24]3 years ago
8 0
Any object, except antimatter, :)

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Ghella [55]

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A. Thickness and temperature

Explanation:

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3 years ago
Astronomers have observed a small, massive object at the center of our Milky Way galaxy. A ring of material orbits this massive
Alexxandr [17]

Answer: M = 42.553·10^{36} kg

Explanation: A orbit where a body remains traveling around a gravitating mass at constant radius is called Circular Orbit. Although in reality the orbit is more like an ellipse, the circular orbit is a good approximation to the real one.

In that system, it is possible to determine the velocity needed to maintain the orbit. The formula is:  v = \sqrt{\frac{GM}{r} } , where:

v is velocity;

G is the gravitational constant( = 6.67·10^{-11}\frac{N.m^{2} }{kg^{2} })

M is the mass of the gravitating mass;

r is the distance between the center of the massive object and the orbiting object;

But, this question is asking for the mass M, so, rearraging:

v^{2} = \frac{GM}{r}

M = \frac{v^{2}.r }{G}

Transforming light-years in metres and dividing by 2 to find the radius:

r = (15.9.461 x 10¹⁵)·\frac{1}{2} = 70.9575

M = \frac{(2.10^{5}) ^{2} .70.9575 }{6.67.10^{-11} }

M = 42.553.10^{36}kg

The mass of the massive object at the center of the ring is 42.553.10^{36}kg.

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3 years ago
Oil flows upward in the wick of a lantern because of the liquid property called
melomori [17]
Oil flows upward in the wick of a lantern because of the liquid property called <span> capillarity.
</span>Final answer: D<span>
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3 0
2 years ago
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The relationship between a cathode and an anode involves
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<span>The relationship between a cathode and an anode involves:
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A. electrons.

Negatively ions which have excess electrons move to the Anode, while Postively charged ions which have less electrons move to the Cathode.
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3 years ago
What is the biggest disadvantage of using nuclear power to produce electricity?
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Answer:

C

Explanation:

Nuclear waste must be safely stored for many years because it is bad to store that much nuclear waste.

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