Athin uniform film of refractive index 1.750 is placed on a sheet of glass with a refractive index 1.50. at room temperature ( 22.2 ∘c), this film is just thick enough for light with a wavelength 583.5 nm reflected off the top of the film to be canceled by light reflected from the top of the glass. after the glass is placed in an oven and slowly heated to 174 ∘c, you find that the film cancels reflected light with a wavelength 587.5 nm .

This is the substance(s) formed in a chemical reaction.

Two 1.20-m nonconducting wires meet at a right angle. one segment carries + 2.50 µc of charge distributed uniformly along its length, and the other carries - 2.50 µc distributed uniformly along it, as shown in fig. 21.50. ( a. find the magnitude and direction of the electric field these wires produce at point p, which is 60.0 cm from each wire. ( b. if an electron is released at p, what are the magnitude and direction of the net force that these wires exert on it?

The vapour pressure of benzene is 53.3 kpa at 60.6 °c, but it fell to 51.5 kpa when 19.0 g of a non-volatile organic compound was dissolved in 500 g of benzene. calculate the molar mass of the compound.