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Ask QuestionPosted by Shashanth Esarapu 5 years, 5 months ago
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Posted by Areeba Sajid 5 years, 5 months ago
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Gaurav Seth 5 years, 5 months ago
the function of the heart.
Answer:
The heart is an organ which beats continuously to act as a pump for the transport of blood, which carries other substances with it. The human heart is divided into four chambers. The upper two chambers are called right and left atrium and the lower two chambers are called the right and left ventricles. Right atrium receives carbon dioxide-rich blood from the body. Blood from right atrium enters the right ventricle, which contracts and pumps the blood to the lungs. On the other hand, oxygen-rich blood from the lungs returns to the left atrium. From the left atrium, blood enters left ventricle. Left ventricle contracts and pumps the blood to all parts of the body. Hence, the rhythmic contraction and expansion of various chambers of the heart maintains the transport of oxygen to all parts of the body.
Posted by Sanjana Dangari 5 years, 5 months ago
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Posted by Arnav Ghoshal 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
Statement: In a right angled triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.
Given: ABC is a triangle in which ∠ABC=90∘
Construction: Draw BD⊥AC.
Proof:
In △ADB and △ABC
∠A=∠A [Common angle]
∠ADB=∠ABC [Each 90∘]
△ADB∼△ABC [A−A Criteria]
So, AD/AB = AB/AC
Now, AB2=AD×AC ..........(1)
Similarly,
BC2=CD×AC ..........(2)
Adding equations (1) and (2) we get,
AB2+BC2=AD×AC+CD×AC
=AC(AD+CD)
=AC×AC
∴AB2+BC2=AC2 [hence proved]
Posted by Sakib Ahmed 5 years, 5 months ago
- 2 answers
Yogita Ingle 5 years, 5 months ago
Primary memory
It is also called as the main memory of the computer. It stores the instructions, operating system and data which required to run the computer. There are two types of primary memories.
RAM (Random Access Memory)
ROM (Read Only Memory
| Floppy Disk (5.25 inches) | Magnetic | 1.2 MB |
| Floppy Disk (3.5 inches) | Magnetic | 1.44 MB |
| Floppy Disk (3.55 inches) | Magnetic | 80 KB to 242 KB |
| Hard Disk | Magnetic | upto 1 TB |
| CD-ROM | Optical | 640 MB to 680 MB |
| DVD-ROM | Optical | 4.7 GB to 17 GB |
| Pen-Drive | Solid State | 1 GB to 512 GB |
| Magnetic tape | Magnetic | Upto 1 TB |
Posted by Durgesh Patil 5 years, 5 months ago
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Posted by K Sanjay K Sanjay 5 years, 5 months ago
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Posted by Prasant Sasmita Kar Kar 5 years, 5 months ago
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Gaurav Seth 5 years, 5 months ago
- I have a huge group of friends at my school, but my best friend’s name is ____________.
- He has a round face with brown hair and eyes.
- My best friend is funny and outgoing by nature.
- He is a gentle and well-mannered boy who is loved by one and all.
- He is very good at his studies and helps me in my studies too.
- We sit, study and play together at school..
- His parents and my parents are good friends too. They visit us often.
- During break time, we eat and share our lunch with each other.
- On my birthday, he gives me wonderful gifts. I also give him nice gifts on his birthday.
- I always pray to God to keep us safe and healthy at all times.
Posted by Shubham Gupta 5 years, 5 months ago
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Posted by Prince Kumar 5 years, 5 months ago
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Posted by Keerthana S.R 5 years, 5 months ago
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Posted by Suihiamliu Kamei 5 years, 5 months ago
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Posted by Keerthana S.R 5 years, 5 months ago
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Gaurav Seth 5 years, 5 months ago
A n s w e r
Let the number be n.
According to question,
(n + 19)/5 = 8
=> n + 19 = 8 * 5
=> n + 19 = 40
=> n = 40 – 19
=> n = 21
So, the number is 21
Posted by Vivek Sharma 5 years, 5 months ago
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Gaurav Seth 5 years, 5 months ago
A n s w e r :
1. Barchans are a crescent-shaped shifting sand dune.
2. Barchans face the wind predominantly from one direction.
3. They are found in sandy deserts.
Posted by Vivek Sharma 5 years, 5 months ago
- 1 answers
Gaurav Seth 5 years, 5 months ago
A n s w e r :
The epicenter is the point on the earth's surface vertically above the focus of the earthquake. Maximum damage is caused at the epicenter.A n s w e r :
The epicenter is the point on the earth's surface vertically above the focus of the earthquake. Maximum damage is caused at the epicenter.
Posted by Ragavi 7A2020 5 years, 5 months ago
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Abhijeet Kumar 5 years, 5 months ago
Posted by Abhijeet Kumar 5 years, 5 months ago
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K Devapriya 5 years, 5 months ago
Posted by Meenakshi Bajeli 5 years, 5 months ago
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Posted by Akash Hazarika 5 years, 5 months ago
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Meghna Thapar 5 years, 5 months ago
- The air molecules expands on heating and contracts on cooling. The hot air molecules occupy more space than cold air molecules.
- The hot air molecules are more heavier than the cold air molecules.
- The warm air rises up and the cold air remains settled at the bottom.
- The warm air rises and it develops low pressure in the area, and the surrounding cooler air is relatively at the higher pressure.
- For example, two test tubes are taken and the open end is covered with the balloon. The test tubes are immersed in the hot and cold water respectively.
- The air inside the hot air balloon will expand and the balloon will swell and the balloon get sucked inside the balloon when exposed to the cold air.
Posted by Shivani Ms 5 years, 5 months ago
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Posted by Akash Hazarika 5 years, 5 months ago
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Meghna Thapar 5 years, 5 months ago
A laboratory thermometer cannot be used to measure the human body temperature. This is because as soon as we take out the bulb of the laboratory thermometer from our mouth, the level of mercury in its tube will start falling quickly. This will give a wrong value of the body temperature. Laboratory thermometers are also designed for lab purposes such as checking boiling point, freezing point, or temperature of other substances.
Posted by Akash Hazarika 5 years, 5 months ago
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Posted by Pranjali Nivangune 5 years, 5 months ago
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Atish Tayade Tayade 5 years, 5 months ago
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