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Ask QuestionPosted by Dhananjay Solanke 5 years, 10 months ago
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Yogita Ingle 5 years, 10 months ago
Infectious diseases are often spread through direct contact. Types of direct contact include:
1. Person-to-person contact
Infectious diseases are commonly transmitted through direct person-to-person contact. Transmission occurs when an infected person touches or exchanges body fluids with someone else. This can happen before an infected person is aware of the illness. Sexually transmitted diseases (STDs) can be transmitted this way.
Pregnant women can also transmit infectious diseases to their unborn children via the placenta. Some STDs, including gonorrhea, can be passed from mother to baby during childbirth.
2. Droplet spread
The spray of droplets during coughing and sneezing can spread an infectious disease. You can even infect another person through droplets created when you speak. Since droplets fall to the ground within a few feet, this type of transmission requires close proximity.
Posted by Tushar Kumar 5 years, 10 months ago
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Ashwath Narayan 5 years, 10 months ago
Yogita Ingle 5 years, 10 months ago
Mass |
Weight |
| Mass can never be zero. | Weight can be zero. As in space if no gravity acts upon an object, its weight becomes zero. |
| Mass is a scalar quantity. It has magnitude. | Weight is a vector quantity. It has magnitude and is directed toward the center of the Earth or other gravity well. |
| Mass is commonly measured in kilograms and grams. | Weight is commonly measured in Newtons. |
| Mass doesn’t change according to location. | Weight varies according to location. |
| The mass may be measured using an ordinary balance. | Weight is measured using a spring balance. |
Posted by Ankit Jha 5 years, 10 months ago
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Posted by Shereeya Patial 5 years, 10 months ago
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Yogita Ingle 5 years, 10 months ago
Binomial nomenclature, introduced by Carolus Linnaeus is the method of naming an organism with the genus name first and species name later.
Conventions followed while naming
*Name of the genus begins with a capital letter.
*Name of the species should begin with a small letter.
*Scientific name should be in Italics when printed.
*Genus name and the species name should be underlined separately while handwritten.
Posted by Palak Singh 5 years, 10 months ago
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Shereeya Patial 5 years, 10 months ago
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Ashwath Narayan 5 years, 10 months ago
Yogita Ingle 5 years, 10 months ago
Archimedes’ principle states that: The upward buoyant force that is exerted on a body immersed in a fluid, whether partially or fully submerged, is equal to the weight of the fluid that the body displaces and acts in the upward direction at the center of mass of the displaced fluid.
The value of thrust force is given by the Archimedes law which was discovered by Archimedes of Syracuse of Greece. When an object is partially or fully immersed in a liquid, the apparent loss of weight is equal to the weight of liquid displaced by it.
Posted by Prashant Nikam 5 years, 10 months ago
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Tushar Kumar 5 years, 10 months ago
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Yogita Ingle 5 years, 9 months ago
(1) Work done by or against conservative force depends only on the initial and final positions of the body.
(2) Work done by or against a conservative force in a round trip is zero.
(3) Work done by a conservative force is completely recoverable.
(4) If only the conservative forces are acting on the body, then its total mechanical energy is conserved.
Posted by Shreyansh Verma 5 years, 10 months ago
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Yogita Ingle 5 years, 10 months ago
When the body floats in the fluid, the weight of fluid replaced is equal to the weight of the body. And there are two forces acted on it.
- Weight acting downward.
- The upthrust acting upwards.
Posted by Maina Saikia 5 years, 10 months ago
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Zaid Sharieff 5 years, 10 months ago
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Ashwath Narayan 5 years, 10 months ago
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Prince Raj 5 years, 10 months ago
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Ashwath Narayan 5 years, 10 months ago
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Meghna Thapar 5 years, 7 months ago
Most of the common effects depend on the fact that the body’s immune system is activated in response to an infection. An active immune system recruits many cells to the affected tissue to kill off the disease-causing microbes. This recruitment process is called inflammation.
Posted by Ayush Tiwari 5 years, 10 months ago
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Yogita Ingle 5 years, 9 months ago
Equilibrium, in physics, the condition of a system when neither its state of motion nor its internal energy state tends to change with time. A simple mechanical body is said to be in equilibrium if it experiences neither linear acceleration nor angular acceleration; unless it is disturbed by an outside force, it will continue in that condition indefinitely.
Posted by Gagan Verma 5 years, 10 months ago
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Yogita Ingle 5 years, 9 months ago
The chemical properties of elements depends upon the number of valence electrons in their atoms. Elements having same number of valence electrons in their atoms shows similar properties. For example alkali metals like lithium, sodium and potassium have same number of electron in their valence shell (i.e. 1) so they show similar properties.
In the similar way elements having different number of valence electrons show different properties. For example, sodium has 1 valence electron and chlorine has 7 valence electrons so they differ in their chemical properties.
Posted by Punit Jaat 5 years, 10 months ago
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Sudhir Yadav 5 years, 10 months ago
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