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Ask QuestionPosted by Umang Shukla 5 years, 10 months ago
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Meghna Thapar 5 years, 6 months ago
- General ways of preventing infection are:
Public hygiene is one basic key to the prevention of infectious disease. In the method of prevention of diseases, following practices are adopted:
- To avoid exposure to air-borne microbes, adopt living conditions that are not overcrowded.
- To prevent exposure to water-borne microbes, safe drinking water should be provided.
- To avoid vector-borne infections, we can provide clean environment as it would not allow mosquito breeding.
Posted by Mangla Devi 5 years, 10 months ago
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Posted by Manoj Kumar 5 years, 10 months ago
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Rajneesh Payal 5 years, 10 months ago
Sia ? 5 years, 10 months ago
Newton's First Law states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force. It may be seen as a statement about inertia, that objects will remain in their state of motion unless a force acts to change the motion.
Posted by Ankit Roy 5 years, 10 months ago
- 1 answers
Gaurav Seth 5 years, 10 months ago
- The relative density of a substance is the ratio of its density to that of water.
- Relative density is a ratio so it has no unit.
Posted by Mehul Rathor 5 years, 10 months ago
- 3 answers
Posted by Shub Shi 5 years, 11 months ago
- 1 answers
Aryan Kumar 5 years, 10 months ago
Posted by Pawan Kumar Patel 5 years, 11 months ago
- 11 answers
Yogita Ingle 5 years, 11 months ago
The SI unit of acceleration is the meter per second squared .
Posted by Krupa Gajjar 5 years, 11 months ago
- 2 answers
Yogita Ingle 5 years, 11 months ago
The boiling point and freezing point of the given liquid comes out to be 100°C or 373 K and 0°C or 273 K respectively under one atmospheric pressure, it confirms that the given liquid is pure water.
Shreeyanshi Shukla 5 years, 11 months ago
Posted by Md Arashad Kamali 5 years, 11 months ago
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Posted by Md Arashad Kamali 5 years, 11 months ago
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Posted by Legend X 5 years, 11 months ago
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Ankit Roy 5 years, 10 months ago
Shreeyanshi Shukla 5 years, 11 months ago
Md Arashad Kamali 5 years, 11 months ago
Legend X 5 years, 11 months ago
Posted by Sharifa Aktara 5 years, 11 months ago
- 1 answers
Posted by Aditya A K 5 years, 11 months ago
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Posted by Ankit Roy 5 years, 11 months ago
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Posted by Muthukumaran Ramachandran 5 years, 11 months ago
- 2 answers
Ankit Roy 5 years, 11 months ago
Gaurav Seth 5 years, 11 months ago
| Meaning | Compound refers to a substance formed by combining two or more elements chemically. | Mixture implies the intermingling of two or more substances into one physically. |
| Nature | Homogeneous | Homogeneous or Heterogeneous |
| Composition | Fixed | Variable |
| Substance | Pure | Impure |
| Properties | Constituents lose their original property. | Constituents keep their original property. |
| New substance | New substance is formed. | No new substance is formed. |
Posted by Jiyanshu Yadav 5 years, 11 months ago
- 1 answers
Gaurav Seth 5 years, 11 months ago
g=10m/s^2 Weight = mass * g 750N = mass * 10 750/10 = mass 75 kg = mass (Mass is same everywhere)
Calculate the value of g at mars:
According to question g of mars = 38% of g of earth = 38/100 * 10 =3.8 m/s2
Now calculate the weight on mars Weight= mass * g = 75* 3.8 =285N
Posted by Premika Chettri Chettri 5 years, 11 months ago
- 1 answers
Gaurav Seth 5 years, 11 months ago
Loudness vs Sound Intensity
- Sound intensity is a property of the sound source but loudness depends on the sound source, the medium and the receiver, as well.
- Sound intensity holds a small significance in problems involving human hearing system, but loudness is a very important property to consider in such problems.
- Sound intensity is measured in Watt per square meter whereas loudness is measured in Sones.
Posted by Arun Kumar 5 years, 11 months ago
- 2 answers
Posted by Navjot Kaur 5 years, 11 months ago
- 1 answers
Meghna Thapar 5 years, 6 months ago
- Fragmentation is a process in which the body breaks up into two or more pieces on maturing, each of which subsequently grows to form a complete new organism.
Posted by Mohammed Tabrej Khan 5 years, 11 months ago
- 2 answers
Ankit Roy 5 years, 11 months ago
Posted by Garv Kushwaha 5 years, 11 months ago
- 13 answers
Posted by Avinash S 5 years, 11 months ago
- 6 answers
Namrata Jindal 5 years, 11 months ago
Posted by Rishabh Raj 5 years, 11 months ago
- 3 answers
Shreeyanshi Shukla 5 years, 11 months ago
Posted by Aryan Baliyan 5 years, 11 months ago
- 5 answers
Ankit Roy 5 years, 11 months ago
Shreeyanshi Shukla 5 years, 11 months ago
Kulsoom Rizvi 5 years, 11 months ago
Avinash S 5 years, 11 months ago
Posted by Hemangini Joshi 5 years, 11 months ago
- 3 answers
Ankit Roy 5 years, 11 months ago
Yogita Ingle 5 years, 11 months ago
Recoil velocity is the backward velocity experienced by a shooter when one shoots a bullet. Due to the recoil velocity the shooter experiences a backward jerk. The recoil velocity is the result of conservation of linear momentum of the system. In fact every projection system experiences a recoil velocity whether it is gun, crossbow, bow and arrow, rocket launchers.
Initial momentum of the system including the gun and the bullet = 0
Final momentum of the system = momentum of the gun + momentum of the bullet = Mv/ + mv
(v/ is the recoil velocity of the gun)
Applying conservation of linear momentum,
0 = Mv/ + mv
Implies, v/ = -(mv)/M
The negative sign indicates that the direction of velocity of the gun is opposite to the direction of velocity of the bullet.
Posted by Mehak Kalra 5 years, 11 months ago
- 4 answers
Ankit Roy 5 years, 11 months ago
Yogita Ingle 5 years, 11 months ago
An electron is represented “e” and it is known to contribute to the negative charge of an atom. The absolute charge of an electron is the negative charge of 1.6×10-19 coulombs. The relative mass of an electron is 1/1836, thus the mass of an electron is very small and is considered as 0.
Electron was discovered by J. J. Thomson in 1897 when he was studying the properties of cathode ray.
Posted by Aman Kumar 5 years, 11 months ago
- 1 answers
Sia ? 5 years, 11 months ago
Recycling is the process of recovering scrap or waste and reprocessing the material into useful products. Glass, paper, plastic, and metals such as aluminum and steel are all commonly recycled.
Posted by Soni Singh 5 years, 11 months ago
- 2 answers
Sia ? 5 years, 11 months ago
The rain containing excess of acid is called acid rain. The rain becomes acidic because carbon dioxide, Sulphur dioxide and nitrogen dioxide which are released into air as pollutants dissolve in rain drops to form acids. Acid rain can cause damage to buildings, historical monuments, plants and animals.
Ankit Roy 5 years, 11 months ago
Posted by Harsh Singh 5 years, 11 months ago
- 5 answers
Ankit Roy 5 years, 11 months ago
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