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The Physics Philes, lesson 54: Axis in Motion

So far in my studies of rotational motion, I’ve focused on rotating rigid bodies where the axis of rotation is stationary. But what about when the axis of rotation is actually moving? What then? Well all your questions will be answered in the coming weeks. I should probably first establish …

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The Physics Philes, lesson 53: Even More on Rotational Dynamics

I’m back, once again, just in time to serve you your weekly dose of physics. As promised last week, I’ll walk you through a problem that will illuminate the rotational dynamics of rigid bodies. Well, I’ll try to anyway. Let’s say we have a cable wrapped around a uniform solid …

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The Physics Philes, lesson 52: Torque, This is Your Moment (of Inertia)

Oh. My. Glob. This is week 52. Fifty-two weeks (give or take a couple) of studying physics. It’s been, at various times, frustrating, fun, and rage-inducing. But it’s mostly been a hoot and a half, and I’m nowhere near done. So! Let’s get on with it! As promised, this week …

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The Physics Philes, lesson 50: Torque It

Holy cow. We’re on lesson 50 of the Physics Philes. I’ve learned so much on this endeavor, and yet, there is so much to go. So onward! This week we will start a discussion of torque. We know from previous installments that the net force applied to a body gives …

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The Physics Philes, lesson 48: Physicists Make Weird Things for Science

In which I draw a weird thing, do math, and make promises I intend to keep. OK nerds! Class is over, which means it’s time to get down and dirty with some physics. Last time this post had something substantive in it, I discussed the kinetic energy of a rigid …

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The Physics Philes, lesson 46: Rotational Motion Gets Kinetic!

Guys! I’m back and ready to science! I hope you missed me. I’ll start today where I left it before the epic black hole detour. That’s right. We’re back in the domain of rotational motion. Specifically, we’ll discuss how to find the kinetic energy of a rigid, rotating body. To …

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The Physics Philes, lesson 39: Angling to Get Ahead

In which bodies are rigid, circles are drawn, and degrees are converted. Okey dokey, people. We just finished our discussion of momentum. It was glorious, but it’s time to move on. We have bigger fish to fry. And by “fish” I mean “topics” and by “to fry” I mean “to …

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