Ok another chemistry question! This is another question that I can)t solve

Final answer:

If an average cell phone is dropped from a typical cruising altitude of an airplane, neglecting air resistance, it would take about 107 seconds to reach the ground.

Explanation:

The subject this question falls under is physics because it involves the physical principles of gravity and free fall. If we ignore air resistance (a common simplification in basic physics problems), we can solve this problem by employing the equation for the time (t) of a free-falling object:

t = √(2h/g),

where h is the height the object falls from and g is acceleration due to gravity (about 9.8 m/).

Notice that we would need to first convert 37,000 feet to meters (about 11,277.6).

By substituting these values into our formula, we get a value that indicates that a phone falling from the typical cruising altitude of an airplane would take about 107 seconds to hit the ground.

Learn more about Free fall time calculation here:

brainly.com/question/33015658

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Answer:

A kind of nuclear reaction where two light nuclei come in contact with each other to produce a solitary heavier nucleus is known as nuclear fusion. The outcomes of this reaction are usually the unstable compound nuclei, which further gets dissociated into steadier daughter components.  

In this reaction, the fusion leads to the discharge of energy as the mass of the novel nucleus is less in comparison to the total of the original masses. There are various kinds of fusion reactions known as deuterium-deuterium reactions, proton-proton chains, and deuterium-tritium reactions.  

Answer:

D.  Pressure and temperature.

Explanation:

The answer is D because when water molecules (H2o) have heat and pressure added it will boil.  For exampe if your cooking pasta, you add water to your pan and when you add heat and put the lid of the pan it will boil.

Answer:BaCl2 + Al2(SO4)3 -->BaSO4 + AlCl3.

Explanation: