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    • Posted by Ash Ketchum 5 years, 10 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Prisha Gupta 5 years, 10 months ago

    For this sub. Diversity

    0Thank You

    Anurag Tiwari 5 years, 10 months ago

    Triangle

    0Thank You

    ANSWER

    • Posted by Tamar Kick Boxing Sports Club 5 years, 10 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Neelam Jain 5 years, 10 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Yogita Ingle 5 years, 9 months ago

    f = frequency of sound wave = 100 Hz

    λ = wavelength of sound wave = 50 cm = 0.50 m

    V = speed of sound wave

    speed of sound wave is given as

    V = f λ

    inserting the values

    V = 100 x 0.50

    V = 50 m/s

    D = distance traveled = 500 m

    t = time taken by sound wave

    time taken by sound wave is given as

    t = D/V

    inserting the values

    t = 50/500

    t = 0.1 sec

     

    1Thank You

    ANSWER

    • Posted by Tejashwa Yadav 5 years, 10 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Arnav Singh 5 years, 10 months ago

    Mass is constant . Weight is not constant . It changes with g SI unit of mass is kg. SI unit of weight is N

    0Thank You

    Kanhiya Khatri 5 years, 10 months ago

    Ka

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    ANSWER

    • Posted by Prince Kumar 5 years, 10 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Marupilla Rajani 5 years, 10 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Tausif Khan 5 years, 10 months ago

    Protons are the positive sub atomic particles which doesn't move freely like electrons.

    2Thank You

    Aayan Shahid 5 years, 10 months ago

    The positive sub atomic particles is known as proton it was discover by e goldstein in 1886

    1Thank You

    ANSWER

    • Posted by Tejashwa Yadav 5 years, 10 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Gaurav Kumar 5 years, 10 months ago

    Physics is not a particular type of subject .it is based on our daily life activities thats all

    0Thank You

    Tausif Khan 5 years, 10 months ago

    When you study you learn anything, then what is physics .

    1Thank You

    ANSWER

    • Posted by Chinmay P 5 years, 10 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Kushal Sharma 5 years, 9 months ago

    a celestial object of very small radius (typically 30 km) and very high density, composed predominantly of closely packed neutrons. Neutron stars are thought to form by the gravitational collapse of the remnant of a massive star after a supernova explosion, provided that the star is insufficiently massive to produce a black hole.

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    • Posted by Harshit Yadav 5 years, 10 months ago

    CBSE > Class 09 > Science
    • 5 answers

    Arjun Prasad 5 years, 10 months ago

    The purpose of this app is to impart education not for these silly questions mind it please

    0Thank You

    Gaurav Kumar 5 years, 10 months ago

    If you asked this time of qus then you will please read the rules of this aap

    0Thank You

    Anushka Mallick 5 years, 10 months ago

    Bekar logic

    0Thank You

    Tejashwa Yadav 5 years, 10 months ago

    Murgi

    0Thank You

    Usha Rani Jena 5 years, 10 months ago

    Ans -"Murgi " because murgi have legs but egg do not have legs .so murgi came first

    1Thank You

    ANSWER

    • Posted by Tejashwa Yadav 5 years, 10 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Aayan Shahid 5 years, 10 months ago

    In this question there is only talking about 1 oxygen atom so its atomic mass unit = 16 Using the formulae No of mole = given mass/ atomic mass 0.2= given mass/16 Given mass = 16×0.2 = 3.2 gram

    1Thank You

    ANSWER

    • Posted by Raja Qureshi 5 years, 10 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Jagriti Chauhan 5 years, 10 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Tejashwa Yadav 5 years, 10 months ago

    Yes

    0Thank You

    ANSWER

    • Posted by Raja Qureshi 5 years, 10 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Yogita Ingle 5 years, 9 months ago

    Work done by force acting on an object is equal to the product of force and the displacement of the object in the direction of the force.

    0Thank You

    ANSWER

    • Posted by Neshat Anjum 5 years, 10 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Ayush Gautam 5 years, 10 months ago

    16/Nà

    0Thank You

    ANSWER

    • Posted by Priyanka Sharma 5 years, 10 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Aayan Shahid 5 years, 10 months ago

    Wireless ferinity

    0Thank You

    ANSWER

    • Posted by Charnjeet Singh 5 years, 10 months ago

    CBSE > Class 09 > Science
    • 4 answers

    Arjun Prasad 5 years, 10 months ago

    Yes golgi apparatus is responsible for the formation of lysosomes

    0Thank You

    Saumya Gupta 5 years, 10 months ago

    Yes

    0Thank You

    Gaurav Kumar 5 years, 10 months ago

    Yes

    0Thank You

    Charnjeet Singh 5 years, 10 months ago

    Yes

    0Thank You

    ANSWER

    • Posted by Prisha Gupta 5 years, 10 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Yash Sharma 5 years, 10 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Gaurav Kumar 5 years, 10 months ago

    W= 1/2× mv square , so according to this formula first of all solve 30km/h then second then add both and your ans will be come

    1Thank You

    Yogita Ingle 5 years, 10 months ago

    Work = Change in kinetic energy
    = 0.5 m (v² - u²)
    = 0.5 × 1500 kg × [(60 × 5/18 m/s)² - (30 × 5/18 m/s)²]
    = 156250 joules
    = 156.25 kJ

    Work done is 156.25 kJ

    0Thank You

    ANSWER

    • Posted by Ronit Gohil 5 years, 10 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Arjun Prasad 5 years, 10 months ago

    A medicine which is injected to tigger the body by developing it's own defence i.e antibodies is called vaccination

    0Thank You

    Yogita Ingle 5 years, 10 months ago

    Vaccine is a biological preparation that resembles a disease causing microbe.

    Vaccination is the process in which vaccine is given to improve the immunity of the body against a specific disease. Vaccination are available for diseases like tetanus, diptheria, whooping cough, measles, polio, chicken pox, etc

    1Thank You

    ANSWER

    • Posted by Dinabandhu Gouda 5 years, 10 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Navneet Kuamr 5 years, 10 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Navneet Kuamr 5 years, 10 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Archana Suman 5 years, 10 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Ayush Gautam 5 years, 10 months ago

    Hii

    0Thank You

    Badal Sahu 5 years, 10 months ago

    Nucleus, mitochondria and endoplasmic reticulam

    0Thank You

    ANSWER

    • Posted by Archana Suman 5 years, 10 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Abhishek Panda 5 years, 10 months ago

    S8

    1Thank You

    Kunal Saini 5 years, 10 months ago

    Sulphur

    1Thank You

    ANSWER

    • Posted by Shani Maurya 5 years, 10 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Satyam Thakur 5 years, 10 months ago

    A storm or system of winds that rotates about a center of low atmospheric pressure, advances at a speed of 20 to 30 miles (about 30 to 50 kilometers) an hour, and often brings heavy rain

    0Thank You

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    • Posted by Rahul Verma 5 years, 10 months ago

    CBSE > Class 09 > Science
    • 5 answers

    Gaurav Kumar 5 years, 10 months ago

    Its become 9.8 m/s but some time we will 10 m/s also

    0Thank You

    Ashwath Narayan 5 years, 10 months ago

    2. When an object falls to the Ground from a height then its velocity changes during the fall this changing velocity produce acceleration in the objects this acceleration is known as ration due to the gravity value is given by 9.8 metre per second square

    0Thank You

    Ashwath Narayan 5 years, 10 months ago

    1. Gravity of the earth attracts everyone towards the centre when an object is released from my ID is file towards the surface of the earth under the influence of gravitational force the motion of the object is said to have free fall

    0Thank You

    Yogita Ingle 5 years, 10 months ago

    The falling of a body (or object) from a height towards the earth under the gravitational force of earth (with on other force acting on it) is called free fall

    • When an object falls freely towards the earth there happens to be no change in the direction of motion of the object but due to the attraction of earth there will be a change in the magnitude of velocity.
    • Change in velocity involves acceleration. So whenever the objects falls towards earth an acceleration is involved due to earth's gravitational force.
    • This acceleration due to earth's gravitational force is called acceleration due to gravity which is denoted by 'g' and its unit is m/s2

    0Thank You

    Hemanshu Kumar 5 years, 10 months ago

    When an object is falling with magnitude alone,then it said to be free fall. Acceleration due to gravity S.I unit=m/s^2

    1Thank You

    ANSWER

    • Posted by Kshitiz Bansal 5 years, 10 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Badal Sahu 5 years, 10 months ago

    It is the si unit of frequency

    0Thank You

    Yogita Ingle 5 years, 10 months ago

    The  hertz (symbol Hz) is the SI unit of frequency defined as the number of cycles per second of a periodic phenomenon.
    This unit is named after a German physicist Heinrich Hertz

    2Thank You

    ANSWER

    • Posted by Kshitiz Bansal 5 years, 10 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Shreya Raj 5 years, 10 months ago

    when kinetic energy and potential act togetherness in the body is called mechanical energy

    0Thank You

    Yogita Ingle 5 years, 10 months ago

    Mechanical energy is the sum of kinetic energy and potential energy in an object that is used to do a particular work. In other words, it describes the energy of an object because of its motion or position, or both.  Potential energy is possessed by the object’s position whereas kinetic energy is possessed by the movement. When an object is moving, its potential energy is zero. When it’s at rest, the kinetic energy is zero.

    0Thank You

    ANSWER

    • Posted by Kshitiz Bansal 5 years, 10 months ago

    CBSE > Class 09 > Science
    • 3 answers

    Gaurav Kumar 5 years, 10 months ago

    When one energy will change into other energy like wind wheel change wind energy to electric energy

    0Thank You

    Shreya Raj 5 years, 10 months ago

    when one form of energy is converted into another form of energy is called transformation of energy. eg. in a battery chemical energy is changes into electrical energy.

    0Thank You

    Yogita Ingle 5 years, 10 months ago

    • Energy can be changed from one form to another.
    • The change of energy from one form to another is called as the transformation or conversion of energy.

         Examples:

    1. The electrical energy in an electric bulb is converted into heat and light energy.
    2. The electrical energy in an electromagnet is converted into magnetic energy.
    3. A cell or a battery converts chemical energy into electrical energy.

    1Thank You

    ANSWER

    • Posted by King Of Kings 5 years, 10 months ago

    CBSE > Class 09 > Science
    • 5 answers

    Gaurav Kumar 5 years, 10 months ago

    Sorry divided by 5

    0Thank You

    Gaurav Kumar 5 years, 10 months ago

    Acceleration = v- u / t, therefore -15/3= -3m/s square

    0Thank You

    Badal Sahu 5 years, 10 months ago

    ꧁☆ꋰꈼꁲꌚꋖ☆꧂

    0Thank You

    Badal Sahu 5 years, 10 months ago

    ꧁☆Şhค໓໐ຟ-๖ēคŞt☆꧂

    0Thank You

    Mayank Agrawal 5 years, 10 months ago

    V = 10m/s , u = 20m/s , t = 5 s a = v - u/t = 10 - 20/5 = -10/5 = -2m/s^2

    0Thank You

    ANSWER

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