Christina

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3. AP Physics C & AP CSA | Suggestions and Help

Hello! Thank you for your reply, and it is impressive how Khan Academy is so responsive to its users! And yes, Phy C will definitely make KA have a comprehensive physics curriculum that includes ad...

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2. Study Group
3. I don't know if I am doing equations in the right way

right! I would write out like this: question: 1/3 + a = 5/3 a = 5/3 - 1/3 a = 4/3

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2. Mobile Platform Questions and Feedback
3. How do I change my avatar background on iOS?

On my Khan Academy app on iPad, I cannot change it either; however, you can still do so by signing into your account on khanacademy.org on your chrome/safari. It will give you the same webpage as i...

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3. AP Physics C

It would be extremely helpful! A lot of content already exist in the physics library so it wouldn't be hard to make the course, 

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3. Chemistry.

Do you mean when the course ends in your 4 years of high school? Usually, the chemistry course is a 1-year course and ends after your sophomore year.