2.5 Proton beam is used to obtain information about the size and shape of atomic nuclei. If the diameter of nuclei is of the order of 10-15 m, what is the approximate kinetic energy to which protons are to be accelerated? Use relativistic expressions.
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- The rate of decay of the radioactive isotope Free Neutron 239 is given by: M = -1.1 x 10-³M where M is the mass of the isotope in grams and t is time measured in minutes. A sample initially contains 3 grams of the isotope. What is the mass of the isotope present in the sample after 320 minutes? The mass is grams. Round your answer to 3 significant figures, if needed. b) How long does it take for the mass of the isotope in the sample to fall to 1.5 gram? It takes t = minutes. Round your answer to the nearest integer if needed.Question 3 We can model a human as a cylinder with a height of 1 m and a radius of 10 cm. Which is the best order of magnitude estimate for the number of cells in a human body? O 10^13 O 10^11 O 10^7 1019 O 10^15Find the number of protons and neutron for Po-210. Separate your answer by a comma, indicating the number of protons first before the number of neutrons.
- Small animals eat much more food per kilogram of body mass than do larger animals. The basal metabolic rate (BMR) is the minimal energy intake necessary to sustain life in a state of complete inactivity. The table lists the BMR in kilocalories per day, the mass, and the surface area for 4 animals. What is the BMR per square meter of the surface area for the mouse?I1:00:00 PM Problem 3: Suppose the speed of light were only 3000.0 m's. A jet fighter moving toward a target on the ground at 810 m/s shoots bullets, each having a muzzle velocity of 1050 m's. Randomized Variables v-810 m/s v2 1050 m's ed What is the velocity of the bullets relative to the target in km's? Grade Sommary Deductions 0% Potential 100%The dimensional equivalence of the quantity "momentum" in terms of the fundamental quantities (mass, length, time) is: O MLT¹ Ob-ML²T-2 OC. MLT. Od MLT 2
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- 10 L Special Relativity predicts that high-energy electrons increase in mass as they approach the speed of light. What kinetic energy will an electron have if it is travelling at 99.875% of the speed of light? Give your answer in MeV and in J. How many times greater is your result than the value the classical formula mv² gives? G AUA particle has γ=9,853. Calculate c-v in m/s.