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Preeti Dabral 2 years, 10 months ago (2983787)
The IOC was created by Pierre de Coubertin, on 23 June 1894 with Demetrios Vikelas as its first president. As of February 2022, its membership consists of 105 active members, 45 honorary members, and one honour member (Henry Kissinger). The IOC is the supreme authority of the worldwide modern Olympic Movement.
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Posted by Tanushri Bhayani 2 years, 10 months ago (10813287)
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Preeti Dabral 2 years, 10 months ago (2983787)
Distance covered by a boat in 5 hours = 36 km
Rate upstream of boat {tex}=\frac{36}{5}{/tex} 7.2 kmph
Speed of the stream = 2.4 kmph
{tex}\therefore{/tex} Speed of the boat in still water
= (7.2 + 2.4) kmph
= 9.6 kmph
{tex}\therefore{/tex} Rate downstream of the boat
= (9.6 + 2.4) kmph
= 12 kmph
{tex}\therefore{/tex} Time taken in covering 78 km distance
{tex}=\frac{78}{12}{/tex}
= 6.5 hours or 6 hour 30 minutes.
Posted by Tanushri Bhayani 2 years, 10 months ago (10813287)
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Preeti Dabral 2 years, 10 months ago (2983787)
Let P be the principal at any time t. According to the given problem, {tex}\frac{d p}{d t}=\left(\frac{5}{100}\right) \times \mathrm{P}{/tex}
or {tex}\frac{d p}{d t}=\frac{\mathrm{P}}{20}{/tex} ...(i)
separating the variables in equation (i), we get
{tex}\frac{d p}{\mathrm{P}}=\frac{d t}{20}{/tex} ...(ii)
Integrating both sides of equation (ii), we get
log P = {tex}\frac{t}{20}{/tex} + C1
or P = {tex}e^{\frac{t}{20}} \cdot e^{\mathrm{C}_{1}}{/tex}
or P = {tex}\mathrm{C} e^{\frac{t}{20}}{/tex} (where eC1 = C) ...(iii)
Now, P = 1000, when t = 0
Substituting the values of P and t in (iii), we get C = 1000. Therefore, equation (iii), gives
P = 1000 et/20
Let t years be the time required to double the principal. Then 2000 = 1000 et/20 {tex}\Rightarrow{/tex} t = 20 loge2.
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Posted by Satya Singh 2 years, 10 months ago (14076026)
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Preeti Dabral 2 years, 10 months ago (2983787)
भौगोलिक संदर्भों में मरूद्यान, शाद्वल, मरूद्वीप, किसी मरूस्थल में किसी झरने, चश्मा या जल-स्रोत के आसपास स्थित एक ऐसा क्षेत्र होता है जहां किसी वनस्पति के उगने के लिए पर्याप्त अनुकूल परिस्थितियां उपलब्ध होती हैं। यदि यह क्षेत्र पर्याप्त रूप से बड़ा हो, तो यह पशुओं और मनुष्यों को भी प्राकृतिक आवास उपलब्ध कराता है
Mohit Kumar 2 years, 10 months ago (12187221)
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Miss Nikita 2 years, 10 months ago (13917837)
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