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Difference between balanced and unbalanced force

Posted by Utkarsh Jha 7 years, 6 months ago

1 answers

Harshvardhan Singh 7 years, 6 months ago

In balance force the object are constant e.g. table,box,chair. But in unbalanced force the object is not constant e.g.human being ,etc

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Explain about ratio of distance and displacement

Posted by Ck Jaishwal 7 years, 6 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Draw the graph of uniform motion and non uniform motion

Posted by Ck Jaishwal 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Nityam Ayush 7 years, 6 months ago

The distance time graph of uniform motion is a straight line and non uniform motion is curved line.?

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How motion is relative?explain with example

Posted by Ck Jaishwal 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Yogita Ingle 7 years, 6 months ago

An observer on the earth records various motions, that of a train, a bus, a bird, a plane and so on. But consider an hypothetical scenario with an observer on sun. He can as well perceive these motions i.e. a train, a bus on earth.
But the two observers will find the velocity and accelerations differently and unmatching. Hence, unless the observer specifies it's frame of reference the description of motion is meaningless. Motion is a relative term.

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Difference between merismatic and permanent tissue.

Posted by Diya Valecha 7 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Sanjeev Kumar 7 years, 6 months ago

Meristemetic tissue are dividing tissue.But permament tissue are non dividing supporting tissue.

3Thank You

Kashab Saikia 7 years, 6 months ago

Ncuy

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Why temperature remains same on its boiling or melting point??thanks?

Posted by Palak Genius 7 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Nityam Ayush 7 years, 6 months ago

Because excess heat is taken to break the intermollecular attaction force.

1Thank You

Sanjeev Kumar 7 years, 6 months ago

Because excess heat is taken for state change.

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Define solubility

Posted by Rohit Kumar 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Palak Genius 7 years, 6 months ago

When a substance get fully dissolved in water without leaving any residue

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ANSWER

How many types of inertia

Posted by Rohit Kumar 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Rohit Kumar 7 years, 6 months ago

There are three types of inertia - 1.Inertia of rest 2.Inertia of motion 3.Inertia of direction

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A hammer of mass 500g ,moving at 50m/s ,strike nail tha nail stop the hammer is very short time of 0.01s. What is the force of a nail?

Posted by Kajal Pandey Kajal Pandey 7 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Adarsh Sriram 7 years, 6 months ago

Force=mass.acceleration F=0.5(in kg). 0-50/0.01(acceleration formula used) F=0.5.-5000 F=-2500N As force exerted by nail is opposing force by Newton's third law the force is 2500N

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Rashmi Patel 7 years, 6 months ago

from which lesson

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What is the termused for the junction of two Neuron?

Posted by Sameer Natikar 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Rishabh Srivastava 7 years, 6 months ago

synapse

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Calculate the pressure at a depth of 50 metre below the surface of the sea the density of the sea water is 1024kg/metre cube

Posted by Shourya Garg 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Vikash Kumar 7 years, 6 months ago

Depth--50m Density--1024kg/m3 Acceleration--9 .8 Pressure--h*d*g = 50*1024*9.8 = 501760 pascal

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Universal kaw of gravitation

Posted by Yashvant Singh 7 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Palak Genius 7 years, 6 months ago

F=GMm/r2

1Thank You

Rishabh Srivastava 7 years, 6 months ago

according to universal law of gravitation every body in the universe will attract each other with the force which is directly proportional to their mass and inversly propotional to the square of distance beyween them

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ANSWER

Give two reason to justify that an iron almirah is a solid

Posted by Mohit Mohit 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Nishu Jha 7 years, 6 months ago

Iron has fixed shape and volume. Iron doesn't flow.

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Give two reason to justify thar water is a liquid at room temperature

Posted by Mohit Mohit 7 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Sumanta Shreyanshi 5 years, 8 months ago

two reasons that water is a liquid at room temperature as • It can take shape of any container • It cant be freezed or boiled at room temperature which is 25°C water boiling temperature is 100°c and freezing is 0° hope it helped you

1Thank You

Kushagra Singh 7 years, 6 months ago

Because boiling temperature of water is 100°c and freezing point is 0°c

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Prevertion of ozone layer

Posted by Ravindra Tomar 7 years, 6 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Physics project

Posted by Busa Busa 7 years, 6 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

What is the definition of kinetic energy?

Posted by Tay Ed 7 years, 6 months ago

CBSE > Class 09 > Science

3 answers

Nishu Jha 7 years, 6 months ago

The energy possese by the particles of matter due to its motion is known as kinetic energy.

1Thank You

Aman Barnwal 7 years, 6 months ago

1/2 mv^2

1Thank You

Anna Carol Reji 7 years, 6 months ago

Particles of matter are continuously moving, that is, they posses an energy that is kinetic energy

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procaryotic cell

Posted by Shreya Solanke 7 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Nikhil Dubey 7 years, 6 months ago

These cells do not have well organised nucleus and other membrane bound cell organelles

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Sameer Natikar 7 years, 6 months ago

Pro: premitive, karyotic: nucleus. The cells which have nuclear material without nuclear membrane is called Prokaryotic cells.

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what is humidity?

Posted by Aradhya Mishra 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Aryan Khamari 7 years, 6 months ago

Humidity is a term used to describe the amount of water vapor present in air.

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What is meant by a pure substance?

Posted by Prabhjot Gholia 7 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Lokesh Yadav 7 years, 6 months ago

Pure substance is a substance made up of only one kind of particles.

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Sameer Natikar 7 years, 6 months ago

Pure substance is a substance that does not have more than one type of compound in it.

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Explain law of conservation of momentum

Posted by Nisha Mishra Nisha Mishra 7 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Sanjeev Kumar 7 years, 6 months ago

Law of conservation of momentum states that momentum of a system before collision is equal to momentum of the same system after collision.

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Chanchal Mittal 7 years, 6 months ago

Energy neither be created nor be destroyed only transforms from one state to another

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Waht is nucleus in simple

Posted by Chirag Fegade 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Chanchal Mittal 7 years, 6 months ago

Nucleus is brain of cell and control all the activities in the cell

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Difference between Mixture and Compound. Plz guys give the answer in points☺☺☺☺

Posted by Rohini Chaudhary (Desi Jaatni) 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Chanchal Mittal 7 years, 6 months ago

MIXTURE 1.in mixture compounds are not chemically combined together 2.their melting and boiling points are not fixed 3.they can be separated by physical methods 4.they cannot be separated by chemical methods 5.eg. mixture of water and salt COMPOUNDS 1.in compounds elements are chemically combined together 2.their melting and boiling points are fixed 3.they can not be separated by physical methods 4. They can be separated by chemical methods 5.eg. copper sulphate

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why we drink water which which is kept in (mathka)vessel of sand ins ummer season? ??

Posted by Hitankshi Sahu 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Omkara Ghandwani 7 years, 6 months ago

Cauz the matka shows evaporation and evaporation causes cooling ??

3Thank You

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Syllabus of S.A-1 of biology

Posted by Zoya Kousar 7 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Chanchal Mittal 7 years, 6 months ago

Chapter 5 ,6,15

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Rajan Bajwa 7 years, 6 months ago

Ch 5 6 and last ch

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What would happen if all the oxygen present in the environment is converted into ozone?

Posted by Ashnika Dalvi 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Yogita Ingle 7 years, 6 months ago

If all O₂ present in the environment is converted to ozone then life on earth will come to halt. This is because all the animals and even plants require O₂ to carry out various metabolic processes. If there is no O₂ than we will not be able to respire. Ozone is harmful both for plants and animals. Ozone affects chloroplast of plants and hence photosynthesis. In animals and humans it causes respiratory problems such as asthma and irritation of chest. So, life on earth won't be possible in such case.

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What are lichens and give example?

Posted by Ashnika Dalvi 7 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Omkara Ghandwani 7 years, 6 months ago

A Lichen is a mutually beneficial relationship of fungi and algae. In which fungi is responsible for absorbing of water from the corresponding area and algae is responsible for preparing of food because algae is having chlorophyll while fungi is not having. Such relationships are called symbiotic.

1Thank You

Yogita Ingle 7 years, 6 months ago

A lichen is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi in a symbiotic relationship. The combined lichen has properties different from those of its component organisms. They are used are air pollutants for SO_2.

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The weight of an object is 6 Newton and if its volume is 300 cm cube find the density of an object and comment wheater it will float or sink in water

Posted by Sidhraj Babel 7 years, 6 months ago

CBSE > Class 09 > Science