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AP Physics 1: 1.1 Changes and Conservation Laws. What is the speed of the other piece of wood?

AP Physics 2: 2.5 Changes and Conservation Laws. Which of the following will occur?

AP Physics 1: 1.3 Changes and Conservation Laws. How fast is the particle falling at the instant before it hits the ground?

Don't let this question about gravitational forces get you down! Yeah, yeah...that was an easy joke. You get what you pay for. 

We'd be lion if we said this was an easy question, but give it a shot! Heh. Lion. How punny. 

We've heard of some crazy dieting fads, but leaving the planet may take the cake. We don't suggest you do that, but we do suggest you answer t...

It takes a tiny village to build a tiny renewable energy source.

If there's one good thing about the heat death of the universe, it's that we'll all have an excellent excuse for dodging physics homework.

The real moral of the story here is just "don't get in the way of elephants or tigers." That is not the kind of kinetic energy you want to absorb.

We know you're resisting studying for your AP Physics test. You should at least find out how to increase your resistance so you'll never have...

We hope you'll be vectorious in answering this shmoopy question about vectors! 

We can't resist a good question about resistivity. Can you?

We wouldn't give away the answer to this AP Physics question, not for all the joules in the crown. Come back when you've got some actual jewels. Th...

AP Physics 1: 1.2 System Interactions and Changes. What is the total mechanical energy of the system?

AP Physics 1: 1.4 System Interactions and Changes. What is the change in linear momentum?

AP Physics 1: 2.3 Waves. Which of the following is best described as longitudinal wave motion?

AP Physics 1: 1.1 Waves. What is the frequency of this wave motion?

If you've ever listened to someone with coffee breath, you know that the closer they scoot, the more intense it gets. It's pretty much the same pri...