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Energy is available on earth in different forms. These forms are like kinetic energy, potential energy, electrical energy, heat energy etc. We know that a moving object can do work. An object which is moving faster does more work than an object moving relatively slow. Moving bullet, blowing wind, rotating wheel, a speeding stone all

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In this video we are going to learn about Newton’s laws. This is the most important topic in whole of physics. Before we start discussion on Newton’s laws, let me tell you two situations where you cannot apply Newton’s laws. First situation when the speed of objects is an appreciable fraction of the speed of

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Can you imagine a world where in you’re walking for several hours and you’re not moving or you’re trying to drive a vehicle and it’s not moving. No, we can’t even live in such a way. In fact, we can’t even imagine a world without friction. Because without Friction, you can’t even walk and even

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Menstrual cycle Do you know the functions of female reproductive system?

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Before we start this lesson, I recommend that you watch the video of the lesson in which we talked about the equation for velocity and time. In this particular lesson, we’re going to learn about the equation for position and time. Let’s start that by looking at this graph. You can see that this is

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