Answers: 2
Physics, 22.06.2019 05:40
Unpolarized light of intensity i_0=750w/m^2 is incident upon two polarizers. after passing through both polarizers the intensity is i_2=280w/m^2. (a) what is the intensity of the light after it passes through the first polarizer in w/m^2? (b) write an equation for the angle between the polarizers in terms of the initial (i_0) and final (i_2) intensities. (c) find the angle between the polarizers in degrees.
Answers: 3
Physics, 22.06.2019 13:00
Aplayground merry-go-round has a radius of 4.6 m and a moment of inertia of 200 kg-m2 and turns with negligible friction about a vertical axle through its center. a child applies a 26.0 n force tangentially to the edge of the merry-go-round for 15.0 seconds. if the merry-go-round is initially at rest, how much work did the child do on the merry-go-round?
Answers: 1
Physics, 22.06.2019 13:40
Consider a double atwood machine constructed as follows: a mass 4m is suspended from a string that passes over a massless pulley on frictionless bearings. the other end of this string supports a second similar pulley, over which passes a second string supporting a mass of 3m at one end and m at the other. using two suitable generalized coordinates, set up the lagrangian and use the lagrange equations to find the acceleration of the mass 4m when the system is released. explain why the top pulley rotates even though it carries equal weights on each side.
Answers: 2
If a groceries cart has a mass of 35 kg and crashes
into a poll and stops, what is the impulse if i...
Spanish, 04.01.2021 16:40
Physics, 04.01.2021 16:40
Mathematics, 04.01.2021 16:40
Mathematics, 04.01.2021 16:40
History, 04.01.2021 16:40
Health, 04.01.2021 16:40
Chemistry, 04.01.2021 16:40
Mathematics, 04.01.2021 16:40
English, 04.01.2021 16:40
English, 04.01.2021 16:40
Mathematics, 04.01.2021 16:40