Physics, 25.07.2019 22:50 kaileedeacosta1
An object has a kinetic energy of 810 j after falling a certain distance. if the mass of the object is 20kg, what is the speed of the object at this time? i need the equation and answer !
Answers: 1
Physics, 21.06.2019 22:30
According to the tide table below what time of day will the highest tide occur?
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Physics, 22.06.2019 21:20
People with normal vision cannot focus their eyes underwater if they aren't wearing a face mask or goggles and there is water in contact with their eyes. in a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina.with the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 2.05cm in front of the eye.)
Answers: 3
Physics, 23.06.2019 01:30
Energy transformations that involve one transformation from one type of energy to another are called transformations.
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Physics, 23.06.2019 02:20
Aflute player hears four beats per second when she compares her note to a 523 hz tuning fork (the note c). she can match the frequency of the tuning fork by pulling out the “tuning join” to lengthen her flute slightly. what was her initial frequency?
Answers: 2
An object has a kinetic energy of 810 j after falling a certain distance. if the mass of the object...
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