At the bottom of the circle, the ball is being pulled upward by tension in the rope and downward by its own weight, so that the net force on it is
∑ F = 450 N - (0.75 kg) g = (0.75 kg) a
where a is centripetal acceleration. At this maximum tension, the ball has a maximum centripetal acceleration of
a = (450 N - (0.75 kg) g) / (0.75 kg) = 590.2 m/s²
Then its maximum tangential speed v is such that
a = v² / (1.0 m)
⇒ v = √((1.0 m) a) ≈ 25 m/s
The ability to generalize a study's results to different circumstances is known as external validity that suffers from 7 types of threats.
<h3>What are the threats to External Validity?</h3>
There are 7 major threats to external validity.
- The first threat is sampling bias, in which a sample is not representative of the population.
- The second threat is history, where an unrelated incident can affect the results.
- The third threat is observer bias, in which the traits or actions of the experimenter unintentionally affect the results, resulting in bias and other demand features.
- The fourth threat is the Hawthorne effect, which describes the propensity for individuals to alter their behaviour merely because they are aware that they are being observed.
- The fifth threat is the Testing Effect, in which the results are impacted by whether a test is administered before or after another.
- The sixth threat is the aptitude-treatment, which involves the interaction of individual and group factors to affect the dependent variable.
- The environment, time of day, location, researcher traits, and other variables that restrict the generalizability of the results are included in the seventh threat.
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People finds information from online library catalog. Where can you find an online library catalog is Any of the library's computers, and often the library's homepage.
An online library catalog is known to be an electronic bibliographic database that shows or talks about the books, videotapes, etc. that is often seen and carried by a specific library.
It is known to have originated from a printed source and the library card catalog. It is known to have drawers that has the records of particular items in the library.
See full question below
Where can you find an online library catalog?
A. It depends on whether the library uses the Dewey Decimal System or the Library of Congress System
B. In the same physical location with the card catalog
C. Any of the library's computers, and often the library's homepage
D. Behind the reference librarian's desk
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They usually measure them in grams or ounces. Sometimes, they will use pounds (for a puppy).
Answer:
<h2>hope my answer helps mark me brainliest </h2>
Explanation:
<h2>One consequence of the social problem on the individual is Poverty. Explanation: Social problems are those problems faced by the society as a whole due to various factors like unemployment, political instability, economic problems, social status, inequality, religion, caste, race, social disorganisation, and many more. Additionally, inadequate or unsanitary living conditions can contribute to the spread of disease, which adds to health care costs, prevents individuals from working and threatens the well-being of community members</h2>
