3 years ago

6. Why was it necessary to empty the gasoliner

1 answer:

5 0

Need to empty the gasoliner from the tanks after Auguste Piccard's dive:

To explore the ocean, he used the vessel which required tanks with gasoline to sink to great depths. An object placed in water experiences an uplift force called a buoyant force which may hinder sinking if the object’s force is less.

Since the vessel on its own was lighter than the seawater, the tanks with gasoline increase the force of the vessels so that it can sink to facilitate exploration. Emptying the gasoline was necessary to allow the vessel to come to the surface so that the men can exceed the vessel back to land.

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Recall the chapter on research methods in your text. Natural improvement, nonspecific treatment effects, and placebo effects are

Dennis_Churaev [7]

Answer:

Internal validity.

Explanation:

Internal validity is the study in which trust relationship is build between treatment and outcome. This relationship is known as cause-and-effect.

In this type research, the studies are based on whether the finding is questionable or not. The research which can overrule the possibility of alternative explanations of our findings is internally valid.

The threats of internal valid study are: