Choose the answer that best completes this sentence: The moon may have contributed to the evolution of life from _____.

Physics

1 answer:

Pie2 years ago

7 0

Answer:

Choose the answer that best completes this sentence: The Moon may have contributed to the evolution of life from its gravitational pull.

Explanation:

The gravitational pull between the Earth and the Moon contributed with the evolution of life due to tides.

Remember that tides are formed as a consequence of the differentiation of gravity due to the Moon across to the Earth sphere, that allows the presence of currents in the sea, which avoid the water to stagnate and loss its nutrients for life in it.

However, it is known that life starts in the sea.

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Two tugboats are moving a barge. Tugboat A pushes on the barge with a force of 3000n. Tugboat B pulls with a force of 5000 Newto

kenny6666 [7]

The net force on the barge is 8000 N

Explanation:

In order to find the net force on the badge, we have to use the rules of vector addition, since force is a vector quantity.

In this problem, we have two forces:

The force of tugboat A, $F_A = 3000 N$ , acting in a certain direction
The force of tugboat B, $F_B = 5000 N$ , also acting in the same direction

Since the two forces act in the same direction, this means that we can simply add their magnitudes to find the net combined force on the barge. Therefore, we get

$F=F_A+F_B = 3000 + 5000 = 8000 N$