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13 godz. temu · Hubble's law, also known as the Hubble–Lemaître law, is the observation in physical cosmology that galaxies are moving away from Earth at speeds proportional to their distance. In other words, the farther they are, the faster they are moving away from Earth. The velocity of the galaxies has been determined by their redshift, a shift of the light they emit toward the red end of the visible ...
13 godz. temu · Determine the work done \( W \) in moving a charge \( q \) from a distance \( r_1 \) to \( r_2 \) from the charge \( Q \). The work done against the electrostatic force is given by the integral of the force over the distance: \[ W = \int_{r_1}^{r_2} F \, dr \]
13 godz. temu · An example of a very old age obtained by the co-movement method is the brown dwarf + white dwarf binary COCONUTS-1, with the white dwarf estimated to be 7.3 +2.8 −1.6 billion years old. In this case the mass was not estimated with the derived age, but the co-movement provided an accurate distance estimate, using Gaia parallax.
13 godz. temu · Particulates or atmospheric particulate matter (see below for other names) are microscopic particles of solid or liquid matter suspended in the air.The term aerosol commonly refers to the particulate/air mixture, as opposed to the particulate matter alone. Sources of particulate matter can be natural or anthropogenic. They have impacts on climate and precipitation that adversely affect human ...
13 godz. temu · Fact – unique data (e.g. symbols for Excel formula, or the parts that make up a learning objective) Concept – a category that includes multiple examples (e.g. Excel formulas, or the various types/theories of instructional design) Process – a flow of events or activities (e.g. how a spreadsheet works, or the five phases in ADDIE)
