Q. A baseball is hit with a speed of 29.0 at an angle of 48.0. It lands on the flat roof of a 12.0 -tall nearby building.If the ball was hit when it was 1.2 above the ground, what horizontal distance does it travel before it lands on the building?
Q. Monochromatic 494.2 nm is incident on a diffraction grating containing 4060 lines per centimeter. Find the angle of the first order maximum.