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- https://k12.libretexts.org/Bookshelves/Science_and_Technology/Earth_Science/02%3A_Introduction_to_Earth_Science/2.04%3A_LocationIf you want to meet up with a friend, you could tell him “I am two blocks due north of your apartment.” Can you identify the point of reference, the distance, and the angle? (a) You need a GPS receive...If you want to meet up with a friend, you could tell him “I am two blocks due north of your apartment.” Can you identify the point of reference, the distance, and the angle? (a) You need a GPS receiver to use the GPS system. (b) It takes signals from four GPS satellites to find your location precisely on the surface. The receiver uses the time and the speed of radio signals to calculate the distance between the receiver and the satellite.
- https://k12.libretexts.org/Bookshelves/Mathematics/Algebra/04%3A_Graphs_and_Functions/01%3A_Graphing_in_the_Coordinate_Plane/1.02%3A_Points_in_the_Coordinate_PlaneThe hotel is at the origin of the map and she was told that the restaurant is at the point (4,5) on the map. First notice that you need to move 2 units to the left from the origin in order to be exact...The hotel is at the origin of the map and she was told that the restaurant is at the point (4,5) on the map. First notice that you need to move 2 units to the left from the origin in order to be exactly above the point for the city park. Because the x-coordinate is 0, you do not need to move to the right or to the left from the origin. The x−axis is the horizontal axis in the coordinate plane, commonly representing the value of the input or independent variable.
- https://k12.libretexts.org/Bookshelves/Science_and_Technology/Measurement/04%3A_Length/4.05%3A_Metric_Units_of_Length/4.5.04%3A_Metric_Length_Comparison_in_Meters_Centimeters_and_MillimetersHer instructions say that she needs to cut one of the boards in to a piece that is 200 centimeters long, but she only has a meter stick. Let’s say that you wanted to compare two different units to fig...Her instructions say that she needs to cut one of the boards in to a piece that is 200 centimeters long, but she only has a meter stick. Let’s say that you wanted to compare two different units to figure out which is greater and which is less. The first thing that you need to do is convert the measurements so that the unit of measurement is the same. The answer is that 2 m is greater than 1 m. Juliana can measure 200 cm with the meter stick, but she would need to use the meter stick twice.
- https://k12.libretexts.org/Bookshelves/Science_and_Technology/Life_Science_for_Middle_School_(CK-12)/09%3A_Invertebrates/9.9%3A_Importance_of_MollusksSome are considered delicacies such as oysters and escargot, while others such as the clams and mussels of freshwater ponds and streams are less likely to be consumed due to taste, but none-the-less a...Some are considered delicacies such as oysters and escargot, while others such as the clams and mussels of freshwater ponds and streams are less likely to be consumed due to taste, but none-the-less are very edible. The substance used to form the pearl covering is made from the mother of pearl material that lines the interior of the shell.
- https://k12.libretexts.org/Bookshelves/Science_and_Technology/Physics/17%3A_Electric_Circuits/17.05%3A_Combined_Series-Parallel_CircuitsIn the combination circuit sketched below, find the equivalent resistance for the circuit, find the total current through the circuit, and find the current through each individual resistor. Try to add...In the combination circuit sketched below, find the equivalent resistance for the circuit, find the total current through the circuit, and find the current through each individual resistor. Try to add several bulbs in series and observe the circuit diagram to see what happens to the current, resistance, and brightness of the bulbs. Three 15.0 Ω resistors are connected in parallel and the combination is then connected in series with a 10.0 Ω resistor.
- https://k12.libretexts.org/Bookshelves/Mathematics/Geometry/05%3A_Quadrilaterals_and_Polygons/5.17%3A_Area_and_Perimeter_of_Rhombuses_and_KitesArea is half the product of the diagonals; perimeter is the sum of the sides. If we move the two triangles on the bottom of each quadrilateral so that they match up with the triangles above the horizo...Area is half the product of the diagonals; perimeter is the sum of the sides. If we move the two triangles on the bottom of each quadrilateral so that they match up with the triangles above the horizontal diagonal, we would have two rectangles. So, the height of these rectangles is half of one of the diagonals and the base is the length of the other diagonal. To find the perimeter, you must find the length of each side, which would be the hypotenuse of one of the four triangles.
- https://k12.libretexts.org/Bookshelves/Mathematics/Precalculus/09%3A_Conics/9.02%3A_Section_2-The focal length is \(p=\frac{1}{2}\) which means the focus is \(\frac{1}{2}\) to the right of the vertex at (-2.5,-1) and the directrix is \(\frac{1}{2}\) to the left of the vertex at \(x=-3.5\). Wha...The focal length is \(p=\frac{1}{2}\) which means the focus is \(\frac{1}{2}\) to the right of the vertex at (-2.5,-1) and the directrix is \(\frac{1}{2}\) to the left of the vertex at \(x=-3.5\). What is the equation of a parabola that opens to the right with focal width from (6,-7) to (6,12)\(?\) The focus is in the middle of the focal width.
- https://k12.libretexts.org/Bookshelves/Science_and_Technology/Origins_and_the_Search_for_Life_in_the_Universe/02%3A_A_Little_Astrophysics/2.01%3A_Electromagnetic_RadiationIn both of those cases (r = the radius of the star; r = the orbit of the Earth), if we integrate (or "add up") the flux on the surface of a sphere at that distance, the total equals the luminosity of ...In both of those cases (r = the radius of the star; r = the orbit of the Earth), if we integrate (or "add up") the flux on the surface of a sphere at that distance, the total equals the luminosity of the star.
- https://k12.libretexts.org/Bookshelves/Geography/04%3A_Latin_America_(10_days)/4.08%3A_South_America-_The_Southern_Cone_(1_Day)To the east of the northern region—on the other side of the Paraná River and reaching to the banks of the Uruguay River—is the region called Mesopotamia, whose name means “between rivers.” This unique...To the east of the northern region—on the other side of the Paraná River and reaching to the banks of the Uruguay River—is the region called Mesopotamia, whose name means “between rivers.” This unique region has a variety of features, from flatlands for grazing livestock to subtropical rain forests.
- https://k12.libretexts.org/Bookshelves/GeographyThumbnail: Kremlin Churches – Photo by Joel Weigand
- https://k12.libretexts.org/Bookshelves/Mathematics/College_Algebra/Chapter_9/Section_1%3A
