1. A pilot of mass 100 kg in a jet aircraft executes a loop-the-loop. In this manoeuvre, the aircraft moves in a vertical circle of radius 3.50 km at a constant speed of 255 m/s. Top C Bottom Obd Pop mg mg Determine the Normal force exerted by the seat on the pilot: (A) at the bottom of the loop and (B) at the top of the loop. Include a labelled FBD in your solution.

Can you please elaborate on how do we get 9.8sin35 and how does the equation turns out to be 212.82/1200

2. A small cube of iron is observed under a microscope. The edge of the cube is 5.00-10-6 cm. The atomic mass of iron is 55.845 u. The density of iron is 7.86 g/cm³. Find (a) The mass of the cube (b) The number of iron atoms in the cube

1.3H      Protons_____      Neutrons_____      Electrons_____

Find Vo? ww - R 12 5V Vo Select one: Oa. 5 Ob.-5 Oc. None of them Od.0 e. 4

-14 (a) Find the speed an alpha particle requires to come within 3.4 x 10 m of an iron nucleus. 19.35*10**6 X Your response differs from the correct answer by more than 10%. Double check your calculations. m/s (b) Find the energy of the alpha particle in MeV. 7.79 Your response differs from the correct answer by more than 100%. MeV

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24V-T Emnd I, In. I,, Kcl, KVI

If a patient ingests a small quantity of I¹³¹ for treatment of hyperthyroidism. The lifetime of I¹³¹ is 8.1 days. What fraction N/No remains after 16.2 days?

2. A vial contains 1900 MBq of Technetium-99m on the 18th June 2014 at 06:00. How much will it contain at 07:00 on the 19th June 2014? Please input your answer in Bq and Ci. Note :- When a vial contains 1900 MBq of Technetium- 99m. Kindly give the correct answer.