Use the literature and notes to state the incoming radiation (particles) in the fol- lowing spectroscopies, and in each case, state the nature of the atomic transition involved: aes -auger electron spectroscopy rbs - rutherford backscattering spectrometry sims - secondary ion mass spectroscopy xps - x-ray photoelectron spectroscopy xrf - x-ray fluorescence spectroscopy sem-scanning electron μ probe nra - nuclear reaction analysis

Three archers each fire four arrows at a target. joe’s four arrows hit at points 10 cm above, 10 cm below, 10 cm to the left, and 10 cm to the right of the center of the target. all four of moe’s arrows hit within 1 cm of a point 20 cm from the center, and flo’s four arrows hit within 1 cm of the center. the contest judge says that one of the archers is precise but not accurate, another archer is accurate but not precise, and the third archer is both accurate and precise. which description applies to which archer? explain

The motor m applies a time-varying force of f (200 t) n, where t is in seconds. box b with mass 200 kg starts from rest, and the coefficients of kinetic and static friction are 0.2 and us 0.3 the acceleration due to gravity is g 9.8 m/s2 b 300 a) find the time ' when the box starts to move. b) calculate the speed of the crate at 3 s c) calculate the power delivered by the motor at t 3 s

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is