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KhanAcademyExercises

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New exercises from Khan Academy 2020-12-01T19:38:53.000000
Atualizado: 1 minuto 29 segundos atrás

Rational number word problems

0 seg atrás
Practice solving multi-step word problems. The numbers in these problems may be fractions, decimals, and percents.

Multiply & divide complex numbers in polar form

1 hora 47 minutos atrás
Given two complex numbers in polar form, find their product or quotient.

Special right triangles

10 horas 39 minutos atrás
Use the Pythagorean theorem to discover patterns in 30°-60°-90° and 45°-45°-90° triangles.

Analyze functions (calculator-active)

10 horas 39 minutos atrás
Analyze the behavior of graphs of functions using a graphing calculator and your knowledge about derivatives.

Double-slit experiment - introduction

seg, 2020-11-30 07:18
Let's practice some problems to better understand the basic features of Young's double-slit experiment.

Double-slit experiment: overlapping fringes (two wavelengths)

seg, 2020-11-30 07:11
Let's practice some problems to better understand the fringe pattern that forms when two different wavelengths of light are used together, as sources.

Double-slit experiment: fringe widths (one wavelength)

seg, 2020-11-30 07:10
Let's practice some problems to better understand the factors on which the fringe width depends in Young's double-slit experiment.

Coherence and interference (constructive/destructive)

seg, 2020-11-30 07:10
Let's practice some problems to better understand how different light waves interfere when they cross paths with each other.

Double-slit experiment: intensity variation

seg, 2020-11-30 07:08
Let's practice some problems to better understand how the intensity of overlapping waves vary with the phase or path difference between the waves.

Chromosomes, linkage and recombination

seg, 2020-11-30 06:55
Morgan's experiments, linkage and recombination

Chromosome theory of inheritance

seg, 2020-11-30 06:54
All about the chromosome theory of inheritance

Genes and chromosomes

seg, 2020-11-30 06:50
Differences between genes and chromosomes

Length word problems

seg, 2020-11-30 00:54
Add and subtract lengths to solve word problems. All problems are in meters and centimeters. 

Abolition, slavery, and the Compromise of 1850

seg, 2020-11-30 00:40
Test your understanding of life under slavery, the abolition movement, and the Compromise of 1850.

Number limits, overflow, and roundoff

seg, 2020-11-23 10:42
Check your understanding of number precision, overflow errors, and roundoff errors in computer programs, in this set of free practice questions designed for AP Computer Science Principles students.

Cross product of two vectors (advanced)

seg, 2020-11-23 09:05
cross product - find perpendicular vector, properties of vector product and area of parallelogram

Estimating equations of lines of best fit, and using them to make predictions

sex, 2020-11-20 18:02
Practice estimating the equation of a line of best fit through data points in a scatter plot. Then, use the equation to make a prediction.

Addition word problems within 10

sex, 2020-11-20 17:58
Practice solving word problems by adding small numbers (numbers 10 or less).

Make bar graphs

sex, 2020-11-20 17:46
Practice creating bar graphs (bar charts) from data sets.

Introduction to acid-base reactions

sex, 2020-11-20 16:35
Check your understanding of Brønsted-Lowry acids, bases, and conjugate acid-base pairs in this set of free practice questions designed for AP Chemistry students.

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