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Ask QuestionPosted by Aarti Devi 5 years, 11 months ago
- 1 answers
Posted by Soma Dan 5 years, 11 months ago
- 1 answers
Prateeksha Dhianeshwar 5 years, 11 months ago
Posted by Adarsh Sinha 5 years, 11 months ago
- 1 answers
Yogita Ingle 5 years, 11 months ago
The perimeter of the semi circular park is {tex}P=2r+\pi r{/tex}
We have given, P=72
{tex}P=r(2+\pi){/tex}
{tex}72=r(2+3.14){/tex}
{tex}72=r(5.14){/tex}
{tex}r=\frac{72}{5.14}{/tex}
r=14
The radius of the semi circular park is 14 meter.
The area of the semi circular park is {tex}A=\frac{\pi r^2}{2}{/tex}
{tex}A=\frac{3.14\times 14^2}{2}{/tex}
{tex}A=\frac{3.14\times 196}{2}{/tex}
{tex}A=3.14\times98{/tex}
{tex}A=307.72m^2{/tex}
Therefore, The area of the semi circular park is 307.72 square meter.
Posted by Amol Gujar 5 years, 11 months ago
- 2 answers
Yogita Ingle 5 years, 11 months ago
Given, Number of oscillation =26
Time taken = 58 second
We know that,
Time Period = Time ÷ Number of oscillations
= 58 s ÷ 26 = 2.23s
Posted by Lia Lambert 5 years, 11 months ago
- 0 answers
Posted by Neha Mondal 5 years, 11 months ago
- 2 answers
Yogita Ingle 5 years, 11 months ago
Radius of pipe = 18 cm.
If we wrap ... then it means that we cover the circumference...
So circumference = 2πr
= 2 × 3.14 × 28
= 56 × 3.14
= 175.84 cm.
But according to the question....
The tape is to be wrapped twice.....
so...
= 2 × 175.84
= 351.68 cm.
Hence the length of tape required is 351.68 cm.
Posted by Rashi Gupta 5 years, 11 months ago
- 1 answers
Yogita Ingle 5 years, 11 months ago
Electric current flows through the coil when the switch is ON, and the iron core acts as an electromagnet. The iron core attracts the hammer towards it. The hammer hits the bell and produces a sound. The circuit breaks at the screw contact when the hammer moves towards the iron core. At this point, the iron core ceases to be an electromagnet. The hammer is pulled back to its original position due to the spring action of the steel rod, and then touches the contact again to complete the circuit. The circuit is completed and current flows through the coil again, and the hammer strikes the bell again. The process repeats itself and you hear a ringing sound since the hammer keeps hitting the bell, until the switch is released.
Posted by Shaleihan Khan 5 years, 11 months ago
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Nashwa Thasneem 5 years, 11 months ago
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Yash Raj 5 years, 11 months ago
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Any Khan 5 years, 11 months ago
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Nishtha Sharma 5 years, 11 months ago
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Fiyyaz Khan 5 years, 11 months ago
Posted by Katyayni Super Style Sharma 5 years, 11 months ago
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Posted by Bhawna Kumawat 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
There are various reasons for which we should be vigilant about matters related to forests.
- A decrease in forest area would lead to an increase in carbon dioxide in air. This will lead to an increase of earth’s temperature.
- Soil erosion would occur if there are no forests.
- Floods would be more frequent in absence of forests.
- Forests provide shelter and food to animals. When forests are adversely affected, the habitats of wild animals are also adversely affected.
- Therefore, we need to conserve our forests.
Posted by Yogiraj Deshmukh 5 years, 11 months ago
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Posted by Pranshu Shaw 5 years, 11 months ago
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Meghna Thapar 5 years, 10 months ago
Posted by Ved Mistry 5 years, 11 months ago
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Posted by Ishita Rastogi 5 years, 11 months ago
- 1 answers
Yogita Ingle 5 years, 11 months ago
Generally, the formula for percentage is
{tex}\text { percentage }=\frac{x}{n} \times 100{/tex}
Where x is the given quantity and n is the total quantity
Marks obtained by Rupesh (x) is 495
Total marks (n) is 750
{tex}\text { Percentage }=\frac{\text { marks obtained }}{\text { total marks }} \times 100{/tex}
{tex}\frac{495}{750} \times 100=\frac{99}{150} \times 100=0.66 \times 100=66 \%{/tex}
The percentage marks obtained by Rupesh is 66%
Posted by Girender Phogat 5 years, 11 months ago
- 0 answers
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Aparna Tiwari 5 years, 11 months ago
0Thank You