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Ask QuestionPosted by Tanmay Shrivas 4 years, 4 months ago
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Yogita Ingle 4 years, 4 months ago
According to velocity time graph , acceleration is nothing but slope of velocity(v)(v)-time(t)(t) graph and slope shows change in one variable with respect to other.
Now the condition you have given as a body is moving with constant acceleration; it means either body has zero acceleration or any constant value.
Posted by Durga Dey 4 years, 4 months ago
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Posted by Jyothi Narayan 4 years, 4 months ago
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Rajat Singh 4 years, 4 months ago
Posted by Rahul Tiwari 4 years, 4 months ago
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Posted by Kavisha Aggarwal 4 years, 4 months ago
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Trisha Srivastava 4 years, 4 months ago
Posted by Tanmay Shrivas 4 years, 4 months ago
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Meghna Thapar 4 years, 4 months ago
Matter changes from one state to another when matter it is either heated or cooled and the energy within the matter increases. When a solid changes to gas form, the intermolecular force of attraction decreases and the distance between the molecules increases. The closeness, arrangement and motion of the particles in a substance change when it changes state. When a substance is heated, its internal energy increases: the movement of its particles increases. bonds between particles break when a substance melts or evaporates, or sublimes to form a gas from a solid.
Kavisha Aggarwal 4 years, 4 months ago
Posted by Satwik Banerjee 4 years, 4 months ago
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Meghna Thapar 4 years, 4 months ago
The rate of change of momentum of an object is directly proportional to the resultant force applied and is in the direction of the resultant force. The resultant force is equal to the rate of change of momentum. Newton's second law of motion pertains to the behavior of objects for which all existing forces are not balanced. The second law states that the acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object. The second law of motion states that acceleration is produced when an unbalanced force acts on an object (mass). Examples of Newton's 2nd Law If you use the same force to push a truck and push a car, the car will have more acceleration than the truck, because the car has less mass.
Posted by Ritik Varshney 4 years, 4 months ago
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Meghna Thapar 4 years, 4 months ago
Muscles provide the tug on the bones needed to bend, straighten, and support joints. Muscles can pull on bones, but they can't push them back to their original position, so the muscles work in pairs of flexors and extensors. The extensor muscle relaxes and stretches as the flexor muscle contracts to bend the joint. Muscle is also very important to everyone because we need our muscles to survive. The heart is the strongest muscle in our body and is always looking to get stronger. Muscles enable us to be active and exercise. ... Aerobic exercise is where repetitive activity and large muscle movement is helping our muscles use oxygen.
Posted by Ekta Ekta 4 years, 4 months ago
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Insha Fatima 4 years, 4 months ago
Posted by Sreehari J 4 years, 4 months ago
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Abhinav Patil 4 years, 4 months ago
Posted by Sushant Kumar 4 years, 4 months ago
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Meghna Thapar 4 years, 4 months ago
Tissues are groups of cells that have a similar structure and act together to perform a specific function. The word tissue comes from a form of an old French verb meaning “to weave”. There are four different types of tissues in animals: connective, muscle, nervous, and epithelial. There are four types of tissues found in animals: epithelial tissue, connective tissue, muscle tissue, and nervous tissue.
Posted by Ritik Kumar 4 years, 4 months ago
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Meghna Thapar 4 years, 3 months ago
- Cell is an autonomous self-replicating structure that forms the structural, functional and biological unit of all living organisms.
- A cell characterized by the absence of a distinct, membrane-bound nucleus or membrane-bound organelles, and by DNA that is not organized into chromosomes is called a prokaryotic cell.
Posted by Hiten Jain 4 years, 4 months ago
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Abhinav Patil 4 years, 4 months ago
Posted by Prince Kumar 4 years, 4 months ago
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Meghna Thapar 4 years, 4 months ago
In multicellular organisms, several cells are grouped to form tissues. These tissues perform particular function at a definite place in the body. For example, nerve cells from the nervous tissue which helps in transmission of messages. This is known as division of labour in multicellular organisms. In unicellular organisms, a single cell performs all the basic functions such as respiration, movement, excretion, digestion, etc. But in multicellular organisms, cells are grouped to form tissues. These tissues are specialised to carry out a particular function at a definite place in the body.
Posted by Ananya Aggarwal 4 years, 4 months ago
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Posted by Anash Khan 4 years, 4 months ago
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Posted by Nishant Patel 9 A 4 years, 4 months ago
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Randeep Singh 4 years, 4 months ago
Yogita Ingle 4 years, 4 months ago
When a leaf is examined under the microscope, we observe many tiny pores, which are collectively called stomata.
Stomata are the minute openings, generally found in the epidermis of leaves. They are typically found in plant leaves and can also be found in stems and other parts of plants. Stomata play an important role by permitting the movement of gases such as oxygen, carbon dioxide, and water vapour to diffuse between the interior and outer surface of the plant tissues.
The main functions of stomata are:
- Helps in the exchange of gases by opening and closing the pores in the leaves.
- It helps to expel the excess water out from the leaves in the form of water vapour.
- Based on the weather conditions, it closes or opens its pores to maintain the moisture balance.
- Allows the uptake of carbon dioxide and to give out oxygen during the process of photosynthesis.
- Stomata remain open during the day and closed at night. This closure prevents water from escaping through open pores.
Posted by Mir Adnan 4 years, 4 months ago
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Posted by Insha Fatima 4 years, 4 months ago
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Yogita Ingle 4 years, 4 months ago
Iodine is used in staining cells of an onion peel on the slide due to following reason.
*Onion bulb is made up of scaly leaves which store starch granules in their cytoplasm of the cells.
*Iodine binds to starch in the granules and develops blue black colour.
*This procedure of staining onion cells with iodine make the onion cells visible clearly. It also confirms the fact that onion stores reserve food material in the form of starch.
Posted by Insha Fatima 4 years, 4 months ago
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Meghna Thapar 4 years, 4 months ago
An onion is made of layers, each separated by a thin skin or membrane. In this exercise you will make a wet mount on a microscope slide and look at the cells of the onion membrane magnified by the high power, compound microscope.
To Prepare Stained Temporary Mount of Onion Peel
Peel off a leaf from half a piece of onion and using the forceps, pull out a piece of transparent onion peel (epidermis) from the leaf. Put the epidermis in the watch glass containing distilled water.
Posted by Insha Fatima 4 years, 4 months ago
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Meghna Thapar 4 years, 4 months ago
Golgi bodies are an arrangement of few fluid-filled dishes whereas Endoplasmic reticulum is a network of tubules and vesicles. Golgi apparatus sorts, modifies, and delivers the components in a cell, whereas Endoplasmic reticulum is much a structurally aiding organelle for metabolic activities. Ribosomes, the endoplasmic reticulum and the Golgi apparatus are related to each other through their involvement in protein synthesis and transport. ... The primary role of the Golgi apparatus is to modify the proteins and encase them into vesicles. From here they are transported to the various parts of the cell.
Posted by Prachi Garg 4 years, 4 months ago
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Khushi Yadav 4 years, 4 months ago
Posted by Naina Tina 4 years, 4 months ago
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Astha Bharti 4 years, 4 months ago
Posted by Devanshu Kumar 4 years, 4 months ago
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Yogita Ingle 4 years, 4 months ago
According to Newton's third law for every action there is equal and opposite reaction.
Action= -reaction
Action and reaction forces do not act on same body[ they act on two different objects].so they do not cancel each other.
For example : the rocket works on principle of action and reaction
Action is force on gases.[ hot gases produced due to rapid burning of fuel]
reaction force is force on rocket.[downward gases pushes rocket upwards]
Posted by Devanshu Kumar 4 years, 4 months ago
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Posted by Alakananda Sanjith 4 years, 4 months ago
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Insha Fatima 4 years, 4 months ago
Posted by Devanshu Kumar 4 years, 4 months ago
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Astha Bharti 4 years, 4 months ago
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Rajshree Gupta 4 years, 4 months ago
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