Recent content by noone123

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    Voltage,ohms law, electrical energy dilemma

    Homework Statement I don't understand voltage and electrical energy. So Voltage is power/unit of current. also V=RI. In power lines, the power losses are minimised by using large amounts of voltage. From P=VI, I gets smaller. But ohms law says current will increase. HUH? Power loss = RI^2...
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    Undergrad Trying to understand why integration is inverse of differentiation

    I honestly don't see how this knowledge(or more like understanding) is going to benefit you. From all I know...Integration is the process of finding areas, volumes etc under curves. The fundamental theorem of calculus is able to use the primitive of the curve to find the area under the curve...
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    Undergrad Complex numbers physical interpretation

    I'm still doing school maths, but I can see how complex numbers can be used to represent force vectors if you know what I mean. So I guess it really useful in physics
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    Undergrad Mass Dilation: Does 0.9c Travel Increase Mass?

    Hey Bill K. Isn't the mass increase seen from an another reference point will only be apparent? The person inside the spacecraft will not notice any mass change. im so confused lol
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    Graduate Time dilation and length contraction

    Can someone please clear this up for me? Lets say the distance of Point A from Earth is 10.4 light years. Some spacecraft is traveling 0.95c. So. The person in the spacecraft will see Earth contract but Earth will see the spacecraft contract in length too. The thing I'm confused on is...