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Ask QuestionPosted by Sandeep Kumar 5 years, 3 months ago
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Ash Greninja 5 years, 3 months ago
Posted by Khushbu Ashra 5 years, 3 months ago
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Yogita Ingle 5 years, 3 months ago
Phagocytosis is the process by which living cells like phagocytes engulf or ingest particles or infected cells.
The two types of phagocytes are neutrophils and macrophages, which are essential for immunity.
Khushbu Ashra 5 years, 3 months ago
Posted by Rudra Vishwas 5 years, 3 months ago
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Yogita Ingle 5 years, 3 months ago
Coral polyps are short-lived microscopic organisms, which live in colonies. They flourish in shallow, mud free and warm waters. They secrete calcium carbonate. The coral secretion and their skeletons form coral deposits in the form of reefs. They are mainly of three kinds - Barrier reef, Fringing reef and Atolls. The Great Bather Reef of Australia is a good example of the first kind of coral reefs. Atolls are circular or horse shoe-shaped coral reefs.
Posted by Mishika Pandey 5 years, 3 months ago
- 2 answers
Gaurav Seth 5 years, 3 months ago
A n s w e r : 1 0 m
Step - by - step explanation:
Distance covered in 1 sec.
= 5 * 36 / 18
= 5 * 2
= 10 m
Hence it will take 10 metres in one second
Posted by Reena Jesupa 5 years, 3 months ago
- 4 answers
Krishnam Sarda 5 years, 3 months ago
Posted by Aryan Singh 5 years, 3 months ago
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Gaurav Seth 5 years, 3 months ago
The property shown by nepthleane and not by sodium chloride is :
Naphthalene undergoes sublimation upon heating and directly changes into vapours. Sodium chloride (common salt) does not undergo sublimation. It melts on strong heating.
Posted by Abhishek Singh 5 years, 3 months ago
- 5 answers
Yogita Ingle 5 years, 3 months ago
At an atmospheric pressure of exactly 760mm Hg (1 atm), the temperature at which a liquid boils is called the normal boiling point of the liquid. For water, the vapour pressure reaches the standard atmospheric pressure of 1 atmosphere at 100°C. So the normal boiling point of water is 100°C (212°F or 373K).
Posted by Moksha Sahu 5 years, 3 months ago
- 1 answers
Gaurav Seth 5 years, 3 months ago
Isotope → Isotopes are atoms with the same number of protons, but differ in numbers of neutrons. Isotopes are different forms of a single element.
Example - Carbon 12 and Carbon 14 are both isotopes of carbon, one with 6 neutrons and one with 8 neutrons.
Posted by Mohit Kumar 5 years, 3 months ago
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Darsheka J 5 years, 3 months ago
Posted by Pradeep Mehta 5 years, 3 months ago
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Gaurav Seth 5 years, 3 months ago
. The force of gravitation between two objects is inversely proportional to the square of the distance between them therefore the gravity will become four times if distance between them is reduced to half.
Posted by Karrtik Gupta 5 years, 3 months ago
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Pradeep Mehta 5 years, 3 months ago
Posted by Kartika Kartika 5 years, 3 months ago
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Posted by Lone Azmat 5 years, 3 months ago
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Gaurav Seth 5 years, 3 months ago
A colloid is a kind of solution in which the size of solute particles is intermediate between those in true solutions and those in suspensions.
For Example: - Soap solution, Milk, Ink, Blood and solutions of synthetic detergents.
In a true solution, the solute particles are so small that they cannot scatter or reflect light rays falling on them.
In a colloidal solution (or colloid), the particles are big enough to scatter light.
If a beam of light is put on a colloidal solution kept in a beaker in a dark room, the path of light beam is illuminated and becomes visible when seen from the side.
The path of light beam becomes visible because colloidal particles are big enough to scatter light falling on them in all directions.
Posted by Siddhraj Jadav 5 years, 3 months ago
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Darsheka J 5 years, 3 months ago
Posted by Sachin Chaudhary 5 years, 3 months ago
- 2 answers
Yogita Ingle 5 years, 3 months ago
In a uniform circular motion the direction of motion keeps on changing with the revolution. With the number of revolution displacement from the initial point to the final point also changes. As both these factors changes velocity also changes. But in that uniform circular motion what remains constant is speed.
Posted by Benaka Benaka 5 years, 3 months ago
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Yogita Ingle 5 years, 3 months ago
The number of particles (atoms, molecules or ions) present in 1 mole of any substance is fixed, with a value of 6.022 × 1023. This is an experimentally obtained value. This number is called the Avogadro Constant or Avogadro Number (represented by N0), named in honour of the Italian scientist, Amedeo Avogadro.1 mole (of anything) = 6.022 × 1023 in number,
Posted by Benazir Babar 5 years, 3 months ago
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Meghna Thapar 5 years, 2 months ago
Gravitational force -an attractive force that exists between all objects with mass; an object with mass attracts another object with mass; the magnitude of the force is directly proportional to the masses of the two objects and inversely proportional to the square of the distance between the two objects. As gravitational force between two object, F∝m1m2r2 thereforce, (i) when mass of one object is doubled, the force become twice. (ii) when distance between the objects is doubled, force become (1/4) of its previous value. when the distance between the 2 objects is halved, the gravitational force between the 2 objects is doubled. when the distance between the 2 objects is doubled then the gravitational force doubles.
Posted by Indhushree B 5 years, 3 months ago
- 2 answers
Posted by Prabh Dayal Arora Ix-E 5 years, 3 months ago
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Yogita Ingle 5 years, 3 months ago
60% v/v means 60 ml ethanol in 100 ml of solution. Water is 100-60 = 40 ml.
Ethanol to Water ratio is 60/40 = 3/2
Hence in 250 ml solution, 3 parts of 250ml is ethanol and 2 parts of 250ml is water.
In total, 5 parts makes 250. So 1 part is 250/2 = 50 ml.
Hence ethanol needed is 150ml and water 100ml
Posted by Mukul Kumar 😎 5 years, 3 months ago
- 3 answers
Posted by Acbu Roy 5 years, 3 months ago
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Gaurav Seth 5 years, 3 months ago
Time = 1.2 second
Initial velocity = 1.8m/sec
Final velocity = 4.2m/sec
Now,
Acceleration = final v - initial v/time
So,
So,
Acceleration = 2m/sec²
Mass (given) = 5.5 kg
Now,
So,
F= 5.5 * 2 = 11N
Posted by Aarohi Srivastava 5 years, 3 months ago
- 2 answers
Darsheka J 5 years, 3 months ago
*Suhana * 5 years, 3 months ago
Posted by Jasleen Chhabra 5 years, 3 months ago
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Yogita Ingle 5 years, 3 months ago
On its entry into the body, HIV attacks macrophages.
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