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Matemàtiques (1331)
Ciències Naturals (135)
CS, Geografia I Història (89)
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Video Física
"The photoelectric effect is a tool that we use to determine how much energy electrons have. The photoelectric effect was explained by Albert Einstein in 1905 and states that when light shines on meta ...
"Characteristics of life include living things that are made of cells or cell products, use energy, respond to changes in the environment, maintain homeostasis and reproduce with similar offspring. Th ...
Video Física
"Changes in matter can be classified as either physical or chemical, like matter properties. Physical changes include changes in physical appearance but not composition. All changes in state of matter ...
Hipervinculo Matemáticas
"When looking at a line segment, there is only one line that will pass through the midpoint that will be a constant distance between the two endpoints. This line is called the perpendicular bisector. ...
Hipervinculo Matemáticas
"The centroid is the point of concurrency of the three medians in a triangle. It is the center of mass (center of gravity) and therefore is always located within the triangle. The centroid divides ea ...
Hipervinculo Química
"The periodic table is a chart which arranges all of the known elements according to their atomic numbers. The columns in the periodic table are called families or groups. The rows are called periods. ...
Video Matemáticas
"Perimeter is the sum of the sides of a polygon. It is a distance and therefore is a one-dimensional property. The perimeter of a circle is called its circumference, and can be found using the formul ...
Hipervinculo Matemáticas
"A central angle is an angle whose vertex is on the center of the circle and whose endpoints are on the circle. The endpoints on the circle are also the endpoints for the angle's intercepted arc. The ...
Hipervinculo Matemáticas
"One special case when trying to factor polynomials is a perfect square trinomial. Unlike a difference of perfect squares, perfect square trinomials are the result of squaring a binomial. It's importa ...
Video Matemáticas
"Percents can be confusing, but there are methods we use to make them easier for us. Percents can be rewritten as fractions, or proportions, or as decimals. We can use multiplication and division to f ...
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