Engineers are testing a new thin-film coating whose index of refraction is less than that of glass. They deposit a 560-nmnm-thick layer on glass, then shine lasers on it. A red laser with a wavelength of 640 nmnm has no reflection at all, but a violet laser with a wavelength of 400 nmnm has a maximum reflection. How the coating behaves at other wavelengths is unknown.

An engineer designs a roller coaster so that a car travels horizontally for 162 ft, then climbs 127 ft at an angle of 31.0° above the horizontal. it then moves 127 ft at an angle of 46.0° below the horizontal. if we take the initial horizontal motion of the car to be along the +x-axis, what is the car's displacement? (give the magnitude of your answer, in ft, to at least four significant figures and give the direction of your answer in degrees counterclockwise from the +x-axis.)

Place me with this question is my last question

Can you receive a shock severe enough to prevent you from releasing the wire from an ordinary outlet with dry hands? a. no b. yes explain