Daily Archives: August 3, 2019

140 posts

How we know about the earth’s core | Cosmology & Astronomy | Khan Academy

How we know about the earth’s core | Cosmology & Astronomy | Khan Academy

S-wave shadow and P-wave detection patterns give us information about the core. Created by Sal Khan. Watch the next lesson: https://www.khanacademy.org/science/cosmology-and-astronomy/earth-history-topic/seismic-waves-tutorial/v/seismic-waves?utm_source=YT&utm_medium=Desc&utm_campaign=cosmologystronomy Missed the previous lesson? https://www.khanacademy.org/science/cosmology-and-astronomy/earth-history-topic/plate-techtonics/v/compositional-and-mechanical-layers-of-the-earth?utm_source=YT&utm_medium=Desc&utm_campaign=cosmologystronomy Cosmology & Astronomy on Khan Academy: The Earth is huge, but it is tiny compared to the Sun (which is super huge). But the Sun is tiny compared to…

Geometry of Parabolic and Hyperbolic Orbits

Geometry of Parabolic and Hyperbolic Orbits

Before we can do the math for interplanetary transfers, we have to learn a little about open orbits and some of the associated terminology. This video walks you through the geometry of parabolas and hyperbolas and shows you how to calculate things like escape speed and hyperbolic excess speed. Python figure code: https://gist.github.com/awleonard/098eaccfa9e9af88a7e4ed8339a8ecc0

How to simplify an expression by combining like terms and the distributive property | Khan Academy

How to simplify an expression by combining like terms and the distributive property | Khan Academy

We’ve learned about order of operations and combining like terms. Let’s layer the distributive property on top of this. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/introduction-to-algebra/manipulating-expressions/e/combining_like_terms_2?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI Watch the next lesson: https://www.khanacademy.org/math/algebra/introduction-to-algebra/manipulating-expressions/v/distributive-property-with-rational-terms?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI Missed the previous lesson? https://www.khanacademy.org/math/algebra/introduction-to-algebra/manipulating-expressions/v/combining-like-terms-3?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI Algebra I on Khan Academy: Algebra is the language through which we describe patterns. Think of it…

Markovnikov’s rule and carbocations | Alkenes and Alkynes | Organic chemistry | Khan Academy

Markovnikov’s rule and carbocations | Alkenes and Alkynes | Organic chemistry | Khan Academy

Markovnikov’s Rule and Carbocations. Figuring out which addition reaction is more likely. Created by Sal Khan. Watch the next lesson: https://www.khanacademy.org/science/organic-chemistry/alkenes-alkynes/alkene-reactions/v/addition-of-water-acid-catalyzed-mechanism?utm_source=YT&utm_medium=Desc&utm_campaign=organicchemistry Missed the previous lesson? https://www.khanacademy.org/science/organic-chemistry/alkenes-alkynes/alkene-reactions/v/introduction-to-reaction-mechanisms?utm_source=YT&utm_medium=Desc&utm_campaign=organicchemistry Organic Chemistry on Khan Academy: Carbon can form covalent bonds with itself and other elements to create a mind-boggling array of structures. In organic chemistry, we will learn about…

STAT DIAGNOSTIC on TI 84

STAT DIAGNOSTIC on TI 84

Leave a tip for good service: https://paypal.me/jjthetutor Student Solution Manuals: https://amzn.to/2WZrFnD More help via http://jjthetutor.com Download my eBooks via http://payhip.com/jjthetutor, paperback via http://amazon.com/author/jjthetutor.

Example 1: Simplifying polynomials | Algebra I | Khan Academy

Example 1: Simplifying polynomials | Algebra I | Khan Academy

Simplify 3x^2 – 8x + 7 + 2x^3 – x^2 + 8x – 3 Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra-basics/quadratics-polynomials-topic/polynomial-basics-core-algebra/e/adding_and_subtracting_polynomials?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI Watch the next lesson: https://www.khanacademy.org/math/algebra/introduction-to-polynomials-and-factorization/adding-and-subtracting-polynomials/v/adding-and-subtracting-polynomials-1?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI Missed the previous lesson? https://www.khanacademy.org/math/algebra/introduction-to-polynomials-and-factorization/introduction-to-polynomials/v/multiplying-polynomials-2?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI Algebra I on Khan Academy: Algebra is the language through which we describe patterns. Think of it as a shorthand, of sorts.…

How to write expressions with variables | Introduction to algebra | Algebra I | Khan Academy

How to write expressions with variables | Introduction to algebra | Algebra I | Khan Academy

Learn how to write simple algebraic expressions. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/introduction-to-algebra/writing-expressions-tutorial/e/writing_expressions_1?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI Watch the next lesson: https://www.khanacademy.org/math/algebra/introduction-to-algebra/writing-expressions-tutorial/v/writing-expressions-2?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI Missed the previous lesson? https://www.khanacademy.org/math/algebra/introduction-to-algebra/manipulating-expressions/v/equivalent-forms-of-expressions-1?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI Algebra I on Khan Academy: Algebra is the language through which we describe patterns. Think of it as a shorthand, of sorts. As opposed to having to do something…