1.35 O K/s ll (20% 2:39 PM MeV. Half of the sodium phosphate solution is absorbed by the tumor and deposits 9.0 J of energy into it. The other half of the solution is dispersed throughout the patient's tissues, also depositing 9.0 J of energy into the 50.0 kg of body tissues. i. What is the dose (in gray and rem) that the tumor receives? ii. What is the dose (in milligray and rem) that the rest of the tissues receives? B. Photoelectrons from a material with a binding energy of 2.71 eV are ejected by 420-nm photons. Once ejected, how long does it take these electrons to travel 2.50 cm to a detection device? C. The heating element in an electric kettle is rated as 2.0 kW. If the water in the kettle is at 100.0 °C, what volume of water will be converted into steam in one minute? The specific latent heat of vaporization of the water is 2,257,000 J/ka and the density of water is 1,000 kg/m3. D. Saline solution is delivered into the vein of a patient through a needle. The saline solution has a viscosity of 0.00037 Pa.s, a density of 1,060 kg/m3, and is delivered through a 7.0-cm long needle with an internal diameter of 0.24 mm directly into the patient's vein in which the blood pressure is 130 mmHg (1 mmHg=133.4 Pa). The saline solution must be delivered at a flow rate of 0.04x10-6 m/s. How high must the saline solution be suspended in order to achieve this flow rate? Assume acceleration due to gravity is 9.81 m/s?. E. The radioactive nuclide Plutonium-199 has a half-life of 43.0 min. A sample is prepared that has an initial activity of 7.56 x1011 Bq. i. How many Plutonium-199 nuclei are initially present in the sample? i. How many are present after 30,8 min? iii. What is the activity at this time? QUESTION THREE A. The binding energy of Sodium is 2.28 ev. Calculate the number of photoelectrons ejected from a 1.00 mm? area of Sodium metal by 500-nm electromagnetic radiation having an intensity of 1.30 kW/m?. What power is carried away by the electrons? B. A 60-kg person accidentally ingests a small source of alpha particles (RBE=15). The activity of the source is 0.04 Ci, the half-life of the source is 110 years, and each alpha particle emitted has an energy of 0.586 MeV. It takes 12 Page 4 of 7