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Aleksandr-060686 [28]
3 years ago
12

A ball is dropped from the top of a building. When does the ball have the most potential energy?

Physics
1 answer:
exis [7]3 years ago
5 0

Answer:

When it hits the ground

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Why do most objects tend to contain nearly equal numbers of positive and negative charges?
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<span>Most objects tend to contain the same numbers of positive and negative charge because this is the most stable situation. In fact, if an object has an excess of positive charge, it tends to attract an equal number of negative charges to balance this effect and restore neutrality: the attracted negative charges combine with the excess of positive charges, leaving the object electrically neutral.</span>
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3 years ago
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Using Newton's Second Law, can you explain why one of the major advancements in spaceflight was the development of strong cerami
katovenus [111]

Answer:

high density can withstand high acceleration and applied forces

Heavy metals are toxic to humans,

the clay is quite abundant and in general it is not toxic

Explanation:

The selection of materials for the construction of rockets takes into account many aspects, the technical resistance to the demands of space travel, but also the abundance of the material. Heavy metals have two very serious problems. The first one, some of them are a little scarce in nature, but the most serious problem is that almost all of them are toxic to humans, for example: lead and mercury.

On the other hand, the clay is quite abundant and in general it is not toxic to living beings.

If we use Newton's second law

          F = m a

let's use the concept of density

         rho = m / V

        m = rho V

let's substitute

         F = rho V a

From this expression we see that a material with high density can withstand high acceleration and applied forces, such as those existing in spacecraft clearance and re-entry to Earth.

Unfortunately with this law there is no criterion to select a material unless its density is high, in addition to this criterion low toxicity criteria for human beings are used,

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3 years ago
The standard measure used to compare sound intensity is the_____
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Frequency? Possibly I’m not 100% sure
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While Sophia was driving to work, she tried to avoid hitting an animal and instead hit a parked car. As the car stopped, her bod
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This would be an illustration of Newton's first law of motion. Law of inertia, an object moving at constant velocity will keep moving at constant velocity until a force is acted upon it. Inertia is the tendency of an object to keep moving in a particular direction resisting to change, unless a force acts upon the object.
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Qué es el espectro electromagnético
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Es el conjunto de longitudes de onda de todas las radiaciones electromagnéticas
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