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Serhud [2]
4 years ago
8

Let's start with an example from history. Listed below are a series of claims regarding United States President John F. Kennedy

(1917-1963). Classify each statement according to whether or not it is falsifiable.
Physics
1 answer:
ruslelena [56]4 years ago
7 0

Answer:

Note that both of the falsifiable claims in this example happen to be true. The claim about Kennedy being the 35th President is falsifiable because it can be checked against historical records. The claim that Kennedy died from a bullet in his brain is falsifiable because it could have been shown false by the medical examiner. The remaining claims are not falsifiable: Statements that call on any type of supernatural being are by definition out of the realm of science. Similarly, a claim of something being "undetectable" could not be falsified, and a claim about what Kennedy would have done if he had lived is a conjecture that cannot be disproven.

Explanation:

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Answer:

The work done by Joel is greater than the work done by Jerry.

Explanation:

Let suppose that forces are parallel or antiparallel to the direction of motion. Given that Joel and Jerry exert constant forces on the object, the definition of work can be simplified as:

W = F\cdot \Delta s

Where:

W - Work, measured in joules.

F - Force exerted on the object, measured in newtons.

\Delta s - Travelled distance by the object, measured in meters.

During the first 10 minutes, the net work exerted on the object is zero. That is:

W_{net} = W_{Joel} - W_{Jerry}

W_{net} = F\cdot \Delta s - F\cdot \Delta s

W_{net} = (F-F)\cdot \Delta s

W_{net} = 0\cdot \Delta s

W_{net} = 0\,J

In exchange, the net work in the next 5 minutes is the work done by Joel on the object:

W_{net} = W_{Joel}

W_{net} = F\cdot \Delta s

Hence, the work done by Joel is greater than the work done by Jerry.

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3 years ago
Describe a situation where you could properly conclude that a set of data is precise but
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Fe + Cl2 = Fe2C13. Which side is the reactant side
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Explanation:

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Given that coal used by electric power plants has a heating value of 27.5 million btus metric ton (25 million btus per ton), det
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Answer:

• 36.4 kg of coal.

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Explanation:

Using proportionality constant,

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