Can someone please help me I don’t understand this
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Physics, 22.06.2019 12:30
When a vertical beam of light passes through a transparent medium, the rate at which its intensity i decreases is proportional to i(t), where t represents the thickness of the medium (in feet). in clear seawater, the intensity 3 feet below the surface is 25% of the initial intensity i0 of the incident beam. what is the intensity of the beam "10" feet below the surface? (give your answer in terms of i0. round any constants or coefficients to five decimal places.)
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Physics, 22.06.2019 22:50
When a pair of 10-n forces act on a box of candy, the net force on the box is a 20 n. b about 14 n. c zero. d any of the above depending on the directions of forces.
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Physics, 23.06.2019 03:30
Aspring that is stretched 2.6 cm stores a potential energy of 0.053 j. what is the spring constant of this spring?
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Physics, 23.06.2019 08:00
Whenever the net force on a moving object is zero its acceleration is
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