Question

An incompressible fluid flows steadily through

two pipes of diameter 0.15 m and 0.2 m which

combine to discharge in a pipe of 0.3 m

diameter. If the average velocities in the 0.15 m

and 0.2 m diameter pipes are 2 m/s and 3 m/s

respectively, then find the average velocity in

the 0.3 m diameter pipe.​

Answer 1

Question ⤵️

Aplane wave traveling in a medium with r: : 16 is normally incident upon a second medium with e2-9. both media are made of nonmagnetic, non-conducting materials. if the magnetic field of the incident plane wave is given by 2 2 cos(2r x 10t -ky) (a/m) a) obtain time-domain expressions for the electric and magnetic fields in each of the two (b) determine the average power densities of the incident, reflected, and transmitted media. waves.

Answer ⤵️

We can infer that star y is closer but other factors must be considered including the heat of the star, the mass, and the brightness of the star. even though star x seems dimmer it may just be less bright or contain less heat.