A344-nm thick film coats a glass surface. the indices of refraction of the film and the glass are 1.4 and 1.50, respectively. the surface of the film is illuminated from above at normal incidence with white light.

a) what are the two wavelengths of light in the 400 nm to 800 nm wavelength band that are most strongly reflected? express your answer in nm.

b) what is the wavelength of light in the 400 nm to 800 nm wavelength band that is most weakly reflected? the wavelength of light in the 400 nm to 800 nm wavelength band that is most weakly reflected, in nm.

You have been called to testify as an expert witness in a trial involving a head-on collision. car a weighs 1515 lb and was traveling eastward. car b weighs 1125 lb and was traveling westward at 44.0 mph. the cars locked bumpers and slid eastward with their wheels locked for 22.5 ft before stopping. you have measured the coefficient of kinetic friction between the tires and the pavement to be 0.750 . how fast (in miles per hour) was car a traveling just before the collision? (this problem uses english units because they would be used in a u.s. legal proceeding.)

What type of nuclear decay causes the atomic number of an element to increase by 1?

Thomas his older brothers, who own a junk yard, on the weekends to earn extra money. he likes to them push broken-down cars to the back of the junk yard because it makes him feel strong. last saturday, they pushed three cars with different weights, and he noticed he used different amounts of force for each one. the cars were the following weights: white car: 2,700 kg red car: 1,500 kg blue car: 2,100 kg think about how much force is needed to move each car. which correctly lists the cars in order from the most to least amount of force needed to move them? a) white, blue, red b) blue, red, white c) red, white, blue d) white, red, blue