4b) the average density of the earth is 5.5 g/cm^3. Which has the greater density 1g of uranium of planet earth 4c) which has the greater density -5kg of lead or 10kg of gold? 4d) which has the greater density-5kg of osmium of 10kg is steel? ANSWER ALL PLZ!!

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A: Given: The radius of the earth is 6.38×103 km. The radius of the earth's core is 3.51×103 km.

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A: Moon dust is dangerous to astronauts because

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A: N=N0e-λt→1 T12=ln2λ ⇒λ=ln2T12=0.6931.3×109=0.533×10-9years-1

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A: In this question we have to answer about the Golden Ratio. Please give positive feedback if the…

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A:

Q: Which of the following statements accurately describes our current understanding of the solar…

A: Which of the following statements accurately describes our current understanding of the solar…

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A: Given information :- half life of source A = 10 million years half life of source B = 5 million…

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A: Since the potassium will remain 18% of the original value in 2.97x 109 year.                Now from…

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A:

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A:

Q: T for F)-The plot shows that, on average, Earth's temperature has steadily increased over the past 3…

A: This plot shows the temperature has decreased over the pas 3 million years .

Q: At one point in time, the price of gold was about $1400 per ounce, while that of silver was about…

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A:

Q: WHAT DO YOU MEAN BY EVERYTHING IS MADE OF SOMETHING.

A: Given : Asked to answer What do you mean by everything is made of something ?

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Q: why do scientists generally think that liquid water is necessary for the origin of life? (astronomy)

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A:

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A:

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.