Physics, 25.06.2019 22:30 joelpimentel
Wind energy spins the blades on this wind turbine. the mechanical energy of the moving blades is used to generate electricity. but wind turbines are not suited to all areas of the country, because in some places there’s is not enough wind. why is an eternal energy source, in this case wind, needed to keep the blades spinning?
Answers: 1
Physics, 21.06.2019 13:30
Which seasons are the northern and southern hemispheres experiencing in the image? it is summer in both the northern and southern hemispheres. it is summer in the northern hemisphere and winter in the southern hemisphere. it is winter in both the northern and southern hemispheres. it is winter in the northern hemisphere and summer in the southern hemisphere.
Answers: 2
Physics, 21.06.2019 21:30
Astudent looks at ocean waves coming into the beach. an ocean wave with more energy will a) have a greater height. b) have a greater period. c) travel toward the beach faster. d) strike the beach with greater frequency.
Answers: 1
Physics, 22.06.2019 19:30
The nuclear potential that binds protons and neutrons in the nucleus of an atom is often approximated by a square well. imagine a proton conned in an innite square well of length 105 nm, a typical nuclear diameter. calculate the wavelength and energy associated with the photon that is emitted when the proton undergoes a transition from the rst excited state (n 2) to the ground state (n 1). in what region of the electromagnetic spectrum does this wavelength belong?
Answers: 1
Wind energy spins the blades on this wind turbine. the mechanical energy of the moving blades is use...
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