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iren [92.7K]
3 years ago
10

Can someone help me

Physics
1 answer:
Nady [450]3 years ago
7 0
The answer is D 10x21
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What explosion in the upper solar atmosphere releases about as much energy as millions of 100-megaton hydrogen bombs exploding s
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Answer:

Solar flare

Explanation:

In the Sun when there is an sudden increase in brightness which is generally accompanied by a coronal mass ejection it is known as a solar flare. Solar flares occur close to Sun spot.

Coronal mass ejection is the release of matter (plasma) with a strong magnetic field from the corona of the Sun.

The energy they release ranges between 10^{20}-10^{25}\ Joules which is comparable to 100-megaton hydrogen bombs exploding simultaneously

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Which of the following is not a way by which heat can be transferred?
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The answer would definitely be Conservation . Conservation is saving something .
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Please select the word from the list that best fits the definition site of sea-floor spreading
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<h3><u>Answer;</u></h3>

Mid-ocean ridges

<h3><u>Explanation</u>;</h3>
  • Sea-floor spreading is the process by which molten material adds new oceanic crust to the ocean floor.
  • Mid-ocean ridge is an undersea mountain chain where new ocean floor is produced at a divergent plate boundary.
  • Mid ocean ridge occurs when convection currents rise in the mantle beneath the oceanic crust and create magma where two tectonic plates meet at a divergent boundary.

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3 years ago
A 1,500 kg car is traveling at 25 m/s. The driver suddenly applies the brakes causing the car to skids to a stop. If the average
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By Newton's second law, the car slows down with an average acceleration a such that

-7100 N = (1500 kg) a   ⇒   a ≈ -4.7 m/s²

If we treat the car as accelerating uniformly with this magnitude, then the car slides a distance ∆x such that

0² - (25 m/s)² = 2a ∆x   ⇒   ∆x ≈ 66 m

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The ______________model was first summarized by Aristotle and Plato in the 4th Century BC and later updated by Ptolemy, a Greek
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geocentric- The geocentric model is an Earth-centered model that was first summarized by Ptolemy. In the model the Earth is motionless at the center of Universe.

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