Physics, 09.09.2019 23:30, morganluvsblueow9wtm
In the sum →a+→b=→c, vector →a has a magnitude of 12.0 m and is angled 40.0° counterclockwise from the +x direction, and vector →c has a magnitude of 15.0 m and is angled 20.0° counterclockwise from the −x direction. what are (a) the magnitude and (b) the angle (relative to +x) of →b?
Answers: 1
Physics, 21.06.2019 20:30, milhai0627a
Asmall metal bar, whose initial temperature was 10° c, is dropped into a large container of boiling water. how long will it take the bar to reach 70° c if it is known that its temperature increases 2° during the first second? (the boiling temperature for water is 100° c. round your answer to one decimal place.) sec how long will it take the bar to reach 98° c? (round your answer to one decimal place.)
Answers: 2
Physics, 22.06.2019 12:30, tigistamare03
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.)
Answers: 2
In the sum →a+→b=→c, vector →a has a magnitude of 12.0 m and is angled 40.0° counterclockwise from t...
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