BEING TIMED. PLS HELP. WILL MARK Calculate the energy related to the following wavelength. 4.90 x 10^-7 m

2.61 x 10^18 J
3.00 x 10^8 J
4.06 x 10^-19

Consider the nuclear equation below. 239/94 pu—-> x+ 4/2 he. what is x?

What human activity increases beach erosion?

Which formula equation represents the burning of sulfur to produce sulfur dioxide? s(s) + o2(g) 4502(9) 2h2s(s) + 302(g) —> 2h20(0) + 2502(9) 4fes2+1102 —> 2fe2o3 + 8502 2802(g) + o2(9) v205 , 2503(9)