Atrio of students push a 65 kg crate. the first student pushes 31 n [e], the second student pushes 28 n [s] and the third student pushes 39 n [w]. draw the fbd for the crate.

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?

Atomic nuclei of almost all elements consist of

Which composition of water moves to begin a deepwater current?