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Asked on 29 May CBSE/Class 9/Mathematics CBSE/Class 10/Mathematics

Hi this is taruni from hyderabad.I have a query regarding the part time tution job. I actually wanted... read more

Hi this is taruni from hyderabad.I have a query regarding the part time tution job.

 

 

I actually wanted to teach students from singapore.Could you guide regarding the same.

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Asked on 29 May CBSE/Class 9/Mathematics CBSE/Class 11

I want to teach to class 9&10

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Lesson Posted on 27 May CBSE/Class 9/Mathematics/Surface Area and Volumes/Sphere CBSE/Class 10/Mathematics

A sphere of solid gold has a mass of 100 kg and the density of gold is 19.3 g/cm3. What is the radius of the sphere?

SK Singh

I always feel my students are the best tutor for me who Inspire me to learn new Ideas, and for that,...

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Lesson Posted on 24 May CBSE/Class 9 CBSE/Class 9/Science CBSE/Class 9/Science/Matter in our surroundings +1 CBSE/Class 9/Science/Is Matter Around us pure less

Important chapter notes from "Mixture"

Soumi Roy

I am an experienced, qualified tutor with over 5 years of experience in teaching maths and physics across...

Introduction: Anything that occupies space and has mass is called matter. Matter can be divided into two types. Pure substance: It consists single types of particles which are identical and same characteristics. Mixtures: Mixture contains two or more different kind of particles or atoms. The particles... read more

Introduction:

Anything that occupies space and has mass is called matter. Matter can be divided into two types.

  1. Pure substance: It consists single types of particles which are identical and same characteristics.
  2. Mixtures: Mixture contains two or more different kind of particles or atoms. The particles show their individual characteristics.

Mixtures are of two types.

  • Homogeneous mixtures: A mixture is said to be Homogeneous if all the particles in mixture is mixed properly and they cannot be separated by simple physical process.
  • Heterogeneous mixtures: A mixture is said to be Heterogeneous if all the components of the mixture are not uniformly mixed and they can be separated easily.
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Answered on 20 May CBSE/Class 9/Science

Sound travels faster (as compared to air) in solids as the density of solids are higher than air. However,... read more

Sound travels faster (as compared to air) in solids as the density of solids are higher than air. However, when the density of air is increased, speed of sound slows down. Why? 

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Sharma Ritika

I can teach english science and mathematics upto class 10th.and biology upto12th standard

Sound travels faster in solids as compared to liquids and gases because solids has higher density than others states of matter from which sound can easily pass and take very less time to collide with neighbours,bt in case of liquid and gasses it will take more time because molecules are far apart and... read more

Sound travels faster in solids as compared to liquids and gases because solids has higher density than others states of matter from which sound can easily pass and take very less time to collide with neighbours,bt in case of liquid and gasses it will take more time because molecules are far apart and will take more time to collide each other.

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Answered on 19 Apr Tuition CBSE/Class 9

Silesh Pandey

Math magician

Because on cold nights the dencity of air is lesser.
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Answered on 09 Apr CBSE/Class 9

S Padmalatha

Teacher

Use of statistics in historical times is clear from the history of state administration .In the historical days the king collected statistics regarding the number ofindividualsin each family their incomenumberof individuals whoarephysicallygood such datawereusedfor the purpose of taxation recruitmentofment... read more

Use of statistics in historical times is clear from the history of state administration .In the historical days the king collected statistics regarding the number ofindividualsin each family their incomenumberof individuals whoarephysicallygood such datawereusedfor the purpose of taxation recruitmentofment to the army etc. Inthedaytoday administration the present day governments depend upon statisti toalargeextend since the planning of resources  allocation of funds for various welfare measures production planning of exportandimport policies and other decisions pre made only on the basis of statisticscollected .The long-term  economic planning social welfare measures are decided only by using the statistics collected from various fields .The govermentisthe biggest collector and user of statistical data proper :perspective planning and economic development ina country isonthe basis of thepresentcondition which is exhibited onlythestatisticaldatacollected business and commerce arethe fields wherestatisticsos used to a large extent in many commercial problems and solutions are obtained bytheuseof statistical methods the decision regarding the production price fixationare madeonthestudyofthedataonmarket condition demand pattern and so on costminimizationis an important problem in industries to minimise the cost thevariousfactorsof production should betakeninto account by proper combination of these factors the cost canbeminimized

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Answered on 02 Mar CBSE/Class 9/Mathematics

Salman Ahmad Siddiqui

Maths Tutor

It is not a big job to score 100 out of 100 in mathematics. A Good dedicated teacher and a real dedication can help you score 100%.
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Answered on 09/12/2017 CBSE/Class 9/Science Tuition/Class IX-X Tuition

Sagar R

Molar mass of N2 is 28 (since atomic weight of nitrogen is 14 and for N2=14*2) So mass of 1 mole of N2 is 28g. Therefore, mass of 0.5 mole is 28/2=14g
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