When blue light of wavelength 470 nm falls on a single slit, the first dark bands on either side of center are separated by 51.0 ? . determine the width of the slit. express your answer to three significant figures and include the appropriate units.

An astronaut on the moon throws a baseball upward. the astronaut is 6 ft, 6 in. tall, and the initial velocity of the ball is 3030 ft per sec. the height s of the ball in feet is given by the equation s equals negative 2.7 t squared plus 30 t plus 6.5s=−2.7t2+30t+6.5, where t is the number of seconds after the ball was thrown. complete parts a and b.