what are the names of the two isotopes based on the graph of the photopeak of the isotope of 100kev and 360 kev 4. Identify the isotopes below, used in GC imaging, from the following spectra: (2x2=4) 10 50 100 150 Primary photons Scattered photons 3.50 3.00 2.50 2.00 1.50 1.00 0.50 0.00 50 200 250 300 350 100 150 200 250 300 Energy (keV) 350 400 450 500 Energy (keV) a) b)

Select the correct FBD of particle A. 30° A. 40° 100 kg

Describe the LIGO detector's components.

Find the average binding energy per nucleon of 2 Mo and 82 Kr. (For the atomic masses, see this table. Enter your answers to at least two decimal places.) 42 36 (a) 92 Mo 42 MeV/nucleon 82 (b) Kr 36 MeV/nucleon