Solve the dimension of work in physics

Which boundary is associated with the building of the himalaya mountains? convergent transform divergent hot spot

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f

An ideal polarizer with its transmission axis rotated 30 degrees to the vertical is placed in a beam of unpolarized light of intensity 10w/m^2. after passing through the polarizer, what is the intensity of the beam? a. 8.7 w/m^2 b. 7.5 w/m^2 c. 5.0 w/m^2 d. 10 w/m^2 e. 2.5 w/m^2