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Ask QuestionPosted by Gopika Vasu 7 years, 3 months ago
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Yogita Ingle 7 years, 3 months ago
Friction is always more on a rough surface compared to a smooth surface. This is because rough surface offers more resistance to the movement of an object over it compared to a smooth surface. So, rough surface have greater friction.
Posted by Shubham Jain 7 years, 3 months ago
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Meghna Thapar 5 years, 7 months ago
Disposing of waste has huge environmental impacts and can cause serious problems. Some waste will eventually rot, but not all, and in the process it may smell, or generate methane gas, which is explosive and contributes to the greenhouse effect. Leachate produced as waste decomposes may cause pollution. The environmental problems like global warming, acid rain, air pollution, urban sprawl, waste disposal, ozone layer depletion, water pollution, climate change and many more affect every human, animal, and nation on this planet.
Posted by Huzaifa Masood 7 years, 3 months ago
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Vanshika Bhatia 7 years, 3 months ago
Posted by Aditya Sonawane ? Dae Colony 7 years, 3 months ago
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Meghna Thapar 5 years, 7 months ago
Wax is a petroleum product and it is used in candles, therefore when the wax melts, it rises through the wick and is vaporized during burning and produce flames. ... Charcoal is a combustible substance and glows while burning. It does not form flame because it is natural lump variety made from hardwood. Charcoal is a solid fuel. This is the reason that it can't vaporious on heating. so that's why coal not burn by producing flame.. Coal or charcoal does not produce flame when burnt because it does not vapourizes, only those substances which vapourizes on burning produce flame like wax , natural gas.
Posted by Pinki Boruah 7 years, 3 months ago
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C Jhonson 7 years, 3 months ago
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Sonali Aggarwal 7 years, 3 months ago
The perceptible natural movement of the air, especially in the form of a current of air blowing from a particular direction.
Posted by Heramb Shete? 7 years, 3 months ago
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Meghna Thapar 5 years, 11 months ago
- The arrangement of metals in the vertical column in the order of decreasing reactivities is called the reactivity series of metals.
Posted by Abdul Arham Khan 7 years, 3 months ago
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Posted by Anushree Kansal 7 years, 3 months ago
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Abhipsha Sahoo? 7 years, 3 months ago
Posted by Anushree Kansal 7 years, 3 months ago
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Yogita Ingle 7 years, 3 months ago
One complete to and fro movement of the pendulum bob is called one vibration or one oscillation. The time taken by pendulum bob to complete one vibration or one oscillation is called the time period of pendulum.
The number of vibrations or oscillations made in one second is called the frequency of vibration. The unit of frequency of vibration or oscillation of a vibrating object is hertz. When an object makes one vibration per second its frequency is said to be 1 hertz.
Posted by Anushree Kansal 7 years, 3 months ago
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Yogita Ingle 7 years, 3 months ago
Amplitude: Maximum displacement of a wave on either side from mean position is called amplitude. Thus, amplitude shows how far the vibrating object moves from the mean position. The amplitude of a sound wave determines its loudness or volume.
Posted by Kartik Pareek 7 years, 3 months ago
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Sonali Aggarwal 7 years, 3 months ago
Rough surface has more irregularities which cause interlocking of the surfaces of the two objects which are in contact with each other.Friction is caused by the interlocking of irregularities which oppose the motion of the object.Thus the friction is greater if rough surfaces are involved.
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