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professor190 [17]
3 years ago
11

Brainliest 25 pts

Chemistry
1 answer:
Arte-miy333 [17]3 years ago
7 0

Answer:

The Answer is D. principle of original horizontally

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Explanation:

It is given that,

The time period of artificial satellite in a circular orbit of radius R is T. The relation between the time period and the radius is given by :

T^2\propto R^3

The radius of the orbit in which time period is 8T is R'. So, the relation is given by :

(\dfrac{T}{T'})^2=(\dfrac{R}{R'})^3

(\dfrac{T}{8T})^2=(\dfrac{R}{R'})^3  

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R'=4\times R

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Assuming that orbital configuration is the same as electron configuration this is the answer.

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Which chemical agent will you use to modify the frog heart rate?
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This solution is chiefly used to study in vitro experiments on organs and tissues like frog's heart.

Ringer's solution at 23 degree Celsius for normal heart rate
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other chemicals also have significant effect in heart rate,
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Answer:

Endothermic

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Endothermic

Exothermic

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