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MaRussiya [10]
3 years ago
6

Why the mineral opal is often referred to as a mineraloid

Social Studies
1 answer:
Tasya [4]3 years ago
3 0
<span>A mineraloid is a mineral-like substance that does not demonstrate crystallinity.</span>
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Which of the following is a common characteristic of all anxiety disorders?A. above average number of phobias B. excessive, pers
Anton [14]

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<h2>The Correct Answer is B. </h2><h2>excessive, persistent fear and anxiety</h2>

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3 years ago
How are the 50 states alike , and how they are diffrent
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all 50 states answer to a central goverment and have the same currency. They have open borders with one another. They have diffrent cultures and state goverments

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Which situation is an example of indirect taxation?
Elden [556K]

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Which of these drives the development of "generation gaps" in society?
Ghella [55]

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Technological advancements

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6 0
3 years ago
Suppose that scientists discover an asteroid that is 2.0 AU from the sun. If 1 AU - 150 million km, how long would the asteroid'
Mice21 [21]

Answer:

2.84*10^-3 years = 0.00284*10^-3 years

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To find the orbital period you use the following formula:

T=\sqrt{\frac{4\pi^2r^3}{GM}}

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G: Cavendish constant = 6.67*10^-11 Nm^2/kg^2

M: mass of the sun = 1.98*10^30 kg

T=\sqrt{\frac{4\pi^2(3*10^{11}m)^3}{(6.67*10^{-11}Nm^2/kg^2)(1.98*10^{30}kg)}}\\\\T=89839.27\ s

Next, you calculate the time in seconds of one Earth's year:

1\ year=365days*\frac{24\ h}{1\ day}*\frac{3600\ s}{1\ h}=31536000\ s

thus, you use this value to find the orbital period of the asteroid in Earth's year:

T=89839.27\ s*\frac{1\ year}{31536000\ s}=2.84*10^{-3}\ years

5 0
3 years ago
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