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Day: March 7, 2022

In each of the following a force, F is acting on an object of mass, m. The direction of displacement is from west to east shown by the longer arrow. Observe the diagrams carefully and state whether the work done by the force is negative, positive or zero.

Class 9 Physics Work and Energy
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Calculate the work required to be done to stop a car of 1500 kg moving at a velocity of 60 km/h?

Class 9 Physics Work and Energy
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An object of mass, m is moving with a constant velocity, v. How much work should be done on the object in order to bring the object to rest?

Class 9 Physics Work and Energy
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An electric heater is rated 1500 W. How much energy does it use in 10 hours?

Class 9 Physics Work and Energy
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Illustrate the law of conservation of energy by discussing the energy changes which occur when we draw a pendulum bob to one side and allow it to oscillate. Why does the bob eventually come to rest? What happens to its energy eventually? Is it a violation of the law of conservation of energy?

Work and Energy Class 9 Physics
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 What are the benefits of entering into joint ventures and public-private partnerships?

Business Studies Private, Public and Global Enterprises
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 Why are global enterprises considered superior to other business organizations?

Business Studies Private, Public and Global Enterprises
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Can the public sector companies compete with the private sector in terms of profits and efficiency? Give reasons for your answer

Business Studies Private, Public and Global Enterprises
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What was the role of the public sector before 1991?

Business Studies Private, Public and Global Enterprises
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 Describe the Industrial Policy 1991, towards the public sector.

Business Studies Private, Public and Global Enterprises
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What evidence do we have for the origin of life from inanimate matter?

Class 10 Biology
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Explain the importance of fossils in deciding evolutionary relationships.

Class 10 Biology
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