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kendrabrown41
04.02.2020 •
Physics
If a loaded truck that can accelerate at 2 m/s2 loses its load and has one-third of its original mass, what acceleration can it attain if the same driving force acts on it?
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Ответ:
2m/s^2 = 1/3 a (multiply other side by 3)
2m/s^2 * 3= a
= 6 m/s^2
Hope this helps
Ответ:
you'd use the equation that establishes a relationship between energy and wavelength, which looks like this
e=h⋅cλ, where
λ - the wavelength of the photon; c - the speed of light, usually given as 3⋅108m/s; h - planck's constant, equal to 6.626⋅10−34j s
plug the value you were given for the energy of the photon in the above equation to get the wavelength
e=h⋅cλ⇒λ=h⋅ce
λ=6.626⋅10−34js⋅3⋅108ms−1.257⋅10−24j=1.581⋅10−1m