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Try this practice test to see how prepared you are for a biology exam. Whether you are in high school or college, you are likely to have a biology requirement. Biology tests often cover such subjects as physiology, morphology and reproduction of living organisms.

What is torque? This is one of those things that you may have heard about in passing but never really understood. In this episode of Crash Course Physics, Shini sits down with us to discuss what torque is, how it works, why it works, and what it all has to do with this thing called "Moment of Inertia."

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In this class we will discover Uzbekistan and talk about its traditions, food, attractions.

In this class we will discuss relocation, tips how to relocate and what to do before it

Bridges... bridges, bridges, bridges. We talk a lot about bridges in Physics. Why? Because there is A LOT of practical physics that can be learned from the planning and construction of them. In this episode of Crash Course Physics, Shini talks to us about a particular mistake made in engineering the Millennium Bridge which allows us to talk about simple harmonic motion.

Shrek lesson in GLOW marathon for teenagers

Continuing with last week's introduction of calculus, Shini leads us through the ways that integrals can help us figure out things like distance when we have several other key bits of information. Say, for instance, you wanted to know how far your window was off the ground. By using integrals, a tennis ball, and a stop watch, you can figure that out! It's all here in this episode of Crash Course Physics!