In a TV set, an electron beam moves with horizontal velocity of 2.5 × 107 m/s across the cathode ray tube and strikes the screen, 40 cm away. The acceleration of gravity is 9.8 m/s2 .How far does the electron beam fall while traversing this distance?Answer in units of m.

Natural forces that can alter ecosystems include seasons and climate changes. t or f

Modern physics a photon emitted from an excited hydrogen atom has an energy of 3.02 electron volts. which electron energy-level transition would produce this photon? a. n=1 to n=6 b. n=2 to n=6 c. n=6 to n=1 d. n=6 to n=2 i chose b but the correct answer is d can someone tell me why? and what's the difference?

Which atomic model was proposed as a result of j. j. thomson’s work?