Does anyone have the genetics unit test? i need answers now or ill have to go to boot camp please hel

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?

What’s #16 asking and how do i solve it?

While the change in blank will remain the same during a collision, the force needed to bring an object to a stop can be blank if the time if collision is blank