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larisa86 [58]
3 years ago
8

Melissa heated a few blue crystals in a test tube. After a few minutes, she observed that the crystals had turned white and a fi

lm of water had formed on the inside of the test tube. Before Melissa conducted this experiment, she most likely developed a theory.developed a hypothesis.developed a bias.developed a scientific law.
Physics
1 answer:
seraphim [82]3 years ago
4 0
I think it will be developed theory
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What makes astronomers think that impact rates for the Moon must have been higher earlier than 3.8 billion years ago?
dexar [7]

There is strong evidence indicating that 3.8 billion years ago there was a higher impact rate. This deduction starts from comparing the number of craters in the lunar highlands with those of the Mary. If this comparison is made, it will be observed that there are 10 times more craters in the highlands than in a similar area of Mary. It should be borne in mind that through radioactive dating processes the samples indicate that there is a slightly greater antiquity in the highlands than those of Maria. This allows us to deduce that if the impact rates had been constant, the highlands would have been 10 times older. They would have to be formed 38 billion years ago, long before the universe itself began.

Therefore one of the most obvious reasons is there are ten times more craters on the older highlands than the Younger Maria.

3 0
3 years ago
An airplane has been loaded in such a manner that the CG is located aft of the aft CG limit. One undesirable flight characterist
RoseWind [281]

Answer:

Option B is correct ( difficulty in recovering from a stalled condition.)

Explanation:

Option B is correct ( difficulty in recovering from a stalled condition.)

If you load airplane in such manners CG has changed then it will have huge impact on the longitudinal stability. Due to this airplane would face  difficulty in recovering from a stalled condition.

Stall is the phenomena in which air resistance is increased on the wings which causes decrease in lift. So it is important to remain with in CG limit put by manufacturer to avoid stall condition.

4 0
4 years ago
PLEASE HURRY
VLD [36.1K]

Answer:

Wilhelm Conrad Roentgen (1845-1923)

Antoine Henri Becquerel (1852-1908)

Pierre (1859-1906) and Marie (1867-1934) Curie

Explanation:

Wilhelm Conrad Roentgen (1845-1923)

Contribution:  Discovery of x-rays in 1901.

Antoine Henri Becquerel (1852-1908)

Contribution: He discovered that radioactivity is the separation of x-rays and document and the difference between two.

Pierre (1859-1906) and Marie (1867-1934) Curie

Contribution: She discovered Polonium and Radium in1911

5 0
3 years ago
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vlabodo [156]
Oil flows upward in the wick of a lantern because of the liquid property called <span>Capillarity c:</span>
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3 years ago
8. Which of the following is not a goal of the Clean Water Act? (1 point)
ankoles [38]

Answer: D allowing businesses to release industrial wastes into rivers

4 0
3 years ago
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