Which of the following is true about pseudoscience?. a. can be trusted because they could use sound scientific methods. b.clearly false and a lie. c. do not use the accepted methods of scientific research and expirimentation. d. easy to identify because of th types of scients involved
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Related Questions
A center-seeking force related to acceleration is _______ force.A. centripetal B. centrifugal C. gravitational D. frictional
What is Earth's role in the hierarchy of organization within the universe
If the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12 s, what is the acceleration of the object?
Melody is riding her mountain bike along a trail with multiple hills. At the bottom of the second hill, she has 3200 J of kinetic energy. At the top of the third hill, when she is going the slowest, her potential energy measures 1650 J. Which statement below is true? A. The total amount of energy at the bottom of the hill cannot equal the amount at the top, because some of the energy from the environment is gained. B. The total amount of energy at the top is equal to the amount at the bottowm, but she gained some energy as she traveled due to a higher speed going down the first two hills. C. The total amount of energy at the bottom of the hill cannot be equal to the amount at the top, because some of the energy is lost.
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We need to rearrange this so wavelength is the subject. To do this, divide both sides by frequency to get :
Wave speed / frequency = wavelength
327 / 185 = 1.7675 m
The Moon revolves around the Sun, but the Earth does not.
B.
The Earth-Moon system revolves around the Sun.
C.
The Earth revolves around the Sun-Moon system.
D.
The Sun revolves around the Earth-Moon system.
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The correct answer is:
(B) The Earth-Moon system revolves around the Sun.
Because the Earth revolves around the sun while the Moon revolves around the Earth.
B. Earth
C. Venus
D. Mercury
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Being the planet closest to the sun, Mercury must be the one
with the shortest year. That's how gravity works.
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Answer:
The thickness of sponge is the dependent variable in this investigation
Explanation:
This is because in the investigation, the amount of mass is the property to be varied while the thickness of the sponge is the property to be checked.
The thickness of the sponge is dependent on the amount of mass placed on it, so the thickness of the sponge depends on the mass.
Thus, the thickness of the sponge is the dependent variable in this instance while the amount of mass is the independent variable in this investigation.
Final answer:
In this scientific investigation about the relationship between the thickness of a sponge and the mass placed upon it, the 'dependent variable' is the sponge's thickness, and the 'independent variable' is the mass applied. The hypothesis may be that there's an exponential relationship between the mass and the sponge's thickness.
Explanation:
In the given scientific investigation, the dependent variable is the thickness of the sponge. This is because the thickness is the aspect of the experiment that changes (or is measured) based on the manipulation of another variable, which in this case is the amount of mass placed on top of the sponge, known as the independent variable. The investigator has control over the independent variable and observes whether changes to it cause a reaction or change in the dependent variable. In other words, the thickness of the sponge 'depends' upon the mass placed on it during the experiment. A possible hypothesis for this experiment may be that the thickness of the sponge decreases (get thinner) as more mass is placed upon it, suggesting an exponential relationship between the mass and the sponge's thickness.
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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:
Explanation:
Expression for relative velocity
=
= (.54 + .82 )c/
= 1.36 c / 1.4428
= .94 c
β = .94