Agamma ray with an energy of 3.40 × 10-14 joules strikes a photographic plate. we know that planck's constant is 6.63 × 10-34 joule·seconds. what is the frequency of the photon? select one of the options below as your a. 5.13 × 1019 hertz b. 5.60 × 1017 hertz c. 2.45 × 1017 hertz d. 2.45 × 10-12 hertz e. 7.80 × 10-19 hertz

Abird flies directly overhead from where you stand at an altitude of 300.0 m and at a speed horizontal to the ground of 20.0 m/s. the bird has a mass of 2.0 kg. the radius vector to the bird makes an angle \thetaθ with respect to the ground. the radius vector to the bird and its momentum vector lie in the xyxy-plane. what is the bird’s angular momentum about the point where you are standing?