What happens in a chemical reaction?

Answer:

[See Below]

Explanation:

Your average speed would be 204.35 mph.

Psychologists study animals to gain insights into behavior, cognition, and emotion, as well as to explore evolutionary continuity, address ethical concerns, understand underlying mechanisms, conduct comparative research, and advance translational research.

Psychologists study animals because they can provide valuable insights into various aspects of behavior, cognition, and emotion that are relevant to understanding human psychology. Here are some reasons why psychologists study animals:

Evolutionary continuity: Animals, particularly non-human primates, share a common evolutionary history with humans. Studying animals can help researchers understand the evolutionary origins of certain behaviors, cognitive processes, and emotions that are also present in humans. By examining similarities and differences across species, psychologists can gain insights into the evolutionary roots of human behavior.

Ethical considerations: Some research questions cannot be addressed directly with human participants due to ethical concerns. In such cases, animals can be used as models to explore certain psychological phenomena. This allows researchers to conduct controlled experiments and manipulate variables in ways that would be unethical or impractical with human subjects. Animal studies can provide important preliminary data that inform further research involving humans.

Mechanistic understanding: Animals provide an opportunity to investigate the underlying mechanisms of behavior and cognition. By studying the neural, genetic, and physiological processes in animals, psychologists can gain insights into the biological basis of certain behaviors and cognitive functions. This knowledge can then be applied to understanding similar processes in humans.

Comparative psychology: Comparing the behavior and cognitive abilities of different animal species can help psychologists identify shared principles, as well as unique adaptations and variations. Comparative studies allow researchers to examine how different animals solve problems, communicate, learn, and adapt to their environments. This broader perspective enhances our understanding of the diversity and flexibility of psychological processes.

Translational research: Animals serve as important models for studying certain psychological disorders and developing potential treatments. By creating animal models of mental illnesses, psychologists can investigate the underlying mechanisms, test hypotheses, and evaluate the effectiveness of interventions. These findings can then be applied to develop treatments and therapies for humans.

Therefore, It is important to note that ethical considerations and guidelines govern the use of animals in research. Researchers must ensure the welfare of the animals and adhere to strict regulations to minimize any potential harm or suffering.

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Answer:

81.29 m/s

Explanation:

Given:

60°C = 333 K is cp = 1.007 kJ/kg·K.

at air inlet:

Pressure = 100 kPa

Temperature = 30°C

Velocity = 357 m/s

at air outlet:

Pressure = 200kPa

Temperature = 90°C

We can define the energy balance as:

- =  Δ = 0

therefore,        =  

m + m =m +  (taking m common and cancelling it)

4 + =    +  

The velocity at the exit of a diffuser:

= [ + 2 ( - )

= [ +  2  x   1000  x  1.007  x  (30-90)

= 81.29 m/s

therefore, the velocity at the exit of a diffuser is 81.29 m/s

Answer:

Exit velocity = 498.3m/s

Explanation:

The energy balance for the system is given by:

Ein - Eout = ◇Esystem

Ein = Eout

Therefore

m' (h1 + V1^2/2) = m' (h2 + V2^2/2)

h1 + V1^2/2 = h2 + V2^2/2

The exit velocity will be:

V2 = [V1^2 + 2(h1 - h2)^0.5 = [V1^2 + 2(cp(T1 - T2)]^0.5

But cp = 1.007kJ/kg

V2 = [(357)^2 + 2(1.007)(90-30)(1000m^2/s^2)]^0.5

V2 = [127449 + 120840]^0.5

V2 = [248289]^0.5

V2 = 498.3m/s

Answer:

Part a)

Part B)

Part c)

Explanation:

Part a)

As we know that

so we will have

Part B)

Angular speed of the yo-yo

so we have

Part c)

Tangential acceleration is given as