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Understanding the properties of electromagnetic waves and the electromagnetic spectrum.
Learn about the light-dependent reactions in photosynthesis and how they convert solar energy into chemical energy.
Besides introducing fixed carbon and energy into ecosystems, photosynthesis also affects the makeup of Earth’s atmosphere. Most photosynthetic organisms generate oxygen gas as a byproduct, and the advent of photosynthesis—over 3 billion years ago, in bacteria resembling modern cyanobacteria—forever changed life on Earth 1 .These bacteria gradually released oxygen into Earth’s ...
Cellular respiration is a process that converts glucose and oxygen into energy for cells.
The Doppler effect formula for observed frequency explained with examples and diagrams.
Learn about the wave equation and its applications in physics with Khan Academy's comprehensive tutorial.
Yes, instead of multiplying by time you can just plug the numbers into the equation: time = distance / rate (speed). In this case it would be: time = 720m / 3m per sec When you divide 720m by 3m/s the meters cancels out and you are then left with time which would be 240 seconds. This equation though is just a manipulation of rate = distance/time.
The webpage explains Bohr's model of hydrogen atom in quantum physics.
Electronic transitions occur in atoms and molecules due to the absorption or emission of electromagnetic radiation (typically UV or visible). The energy change associated with a transition is related to the frequency of the electromagnetic wave by Planck's equation, E = h𝜈. In turn, the frequency of the wave is related to its wavelength and the speed of light by the equation c = 𝜆𝜈.