Answer:
(a) 50 dB
Explanation:
It is given that someone gives training to dog that it will run for food when h whistles a 60 dB whistles and it is also given that dog will not come when he whistles a 70 dB we have to tell that when there is peak shift effect then whistle would lead to the dog fastest running.The dog will run fast for food when there is a whistle of 50 dB when thee is a peak shift effect.
so option (A) will be the correct option
The nation that attended the Congress of Panama in 1826 in the options was A. Columbia.
<h3>What was the Congress of Panama?</h3>
In 1826, Simón Bolívar called for the Congress of Panama which was to help the newly independent Latin American republics to come up with a unified policy.
Columbia attended but Brazil did not. Chile and Argentina did not like how influential Simón Bolívar was and so did not attend either.
Find out more on the Simon Bolivar at brainly.com/question/1402690.
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Parma and paincho are systems of cooperation because they both allow for social social interaction that allows individuals to cooperate in meeting each other's needs.
In short, parma and paincho mean "give and borrow (or borrow)." Paincho refers to goods and parma to services. they work in a society where people in need of a good (like food, clothing, money, etc.) or some service can ask these things from individuals who are not in need who can give or donate these factors or charge any cost or interest needy, just stipulating a date for the loan to be repaid.
<em>Answer:</em>
<em>motivated </em><em> </em>
<em>Explanation:</em>
<em>In psychology,</em><em> a motivated behavior is described as an individual's behavior that is being directed away or towards particular stimuli, as well as it is distinguished as persistence, vigor, substantial activity, and effort's exertion in both maintenance or initiation of a specific behavior carried out by an individual. It includes dynamics of an individual's behavior, for example, ambitions, needs, and desires, etc.</em>
<em>The correct answer for the given question represents motivated behavior. </em>
The ability of the compound microscope to remain relatively focused at higher powers once focused at a lower magnification is called
parfocal ability.
Parfocal capability is the ability of different eyepieces, such as telescopes or microscopes, to focus their images in the same plane. These eyepieces or lenses can then be interchanged without readjusting the instrument.
Parfocal refers to the ability to change objectives with differing powers and have the focus remain sharp. The distance from the top of the objective to the object being viewed is the parfocal distance.
DIN and JIS standard objectives are both parfocal but at different distances. For DIN it’s 45 mm; for JIS, 36 mm.
If you don’t know if yours is a DIN or JIS scope, you can check to see if it’s parfocal. Select a slide or object that can be sharply focused with the most powerful objective on your scope. Then switch to the less powerful objectives in order down to the lowest power. With a parfocal microscope, a slide that is in focus with the 40x objective will still be in focus when using less powerful objectives with little or no refocusing.
You can go from low to high powers to check parfocalization as well. But it's quicker going from high to low, since high-power objectives have very narrow ranges of focus and successively switching to lower powers (wider ranges of focus) will guarantee you’re very close to focus with parfocal objectives.
A similar term is parcentered. It means that objects will stay at or very close to the center of the field of view when changing objectives.
Learn more about parfocal ability here
brainly.com/question/11990826
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