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S Scho X S Post- X d AI2 S x G The fx G rocke x S How bcps.schoology.com/common-assessment-delivery/start/6425623769?action=onresume&submissionid=969196920 NGLSync Portal Ho... S week of 12/20 Meet- nfw-jxsi-wtd Post-Assessment Unit 1 LC2 Potential Energy This Potential Energy Diagram represents an exothermic reaction; excess energy is released when the products are formed. A B C Reaction Coordinate 71 D The potential energy of the reactants is represented by the letter # The potential energy of the products is represented by the letter с E Highlight $ Quizizz CP CPM eBooks Index... % A O Mycoplasma pneu.... & a Qui 1 2 0

What is the initial intensity, I, of the 5 g 6⁰Co source at a distance of 1m if the gamma rays emitted by 6ºCo have an average energy of 1.9 x 10-1³ J?

Calculate the partial pressure of helium gas for a volume of 1.0 x 10-6 m³ of 212Rn gas after 72 minutes. The radon gas was originally placed in an evacuated container at 1 atm, and the temperature remains constant at 0°C. (t, 12 = 23.9 min for 212Rn.) 0.467 X atm What is the partial pressure of the radon gas after this time? atm

Why is uranium-235 used in nuclear fission? why is uranium-235 one of the only elements ideal for nuclear fission to create energy? Is there a link between its stability and its size?

(b) The gamma radiation emitted from a source of cobalt-60 can be used to kill the bacteria on fresh, cooked and frozen foods, Killing the bacteria reduces the risk of food poisoning. The diagram shows how a convevor belt can be used to move food past a cobalt-60 source. Thick metal shielding- Cobalt-60 Moving conveyor belt Which one of the following gives a way of increasing the amount of gamma radiation the food receives? Put a tick (V) in the box next to your answer. Increase the temperature of the cobalt-60 source. Make the conveyor belt move more slowly. Move the cobalt-60 source away from the conveyor belt.

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In a controlled fusion reactor Deuterium-Tritium The temperature of the plasma is T = 10 keV, where k is the k Boltzmann constant. The ions' number density is 2.6×10¹8 m-3. -22 3 Moreover (ov) = 10-²²m³s-¹, where o is the reaction cross-section, v is the relative speed of the reacting particles, and represents averaging according to the Maxwell- Boltzmann distribution. fusion is occurring. For what value of the confinement time does the reactor achieve the break even point? Enter your answer in seconds to 1 decimal point.

Calculate the activity of these samples at the given times: 2.2 mCi Tl-201 (t₁/2 = 73.1 hours) at 22 hrs before calibration 25 μCi Tc-99m at 12 hours before calibration 10 mCi F-18 at 3.5 hours before calibration wwww

A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar System. Mass-spectroscopic analysis produced the following data on the isotopes of tin in these samples: isotope 118 "Sn 120 Sn Use these measurements to complete the entry for tin in the Periodic Table that would be used on 98765 ALEKS. Be sure your answers have the correct number of significant digits. Caution: your correct answer will have the same format but not necessarily the same numbers as the entry for tin in the Periodic Table we use here on Earth. 0 Sn mass relative (amu) abundance 117.9 54.% 0 119.9 Continue 46.% X S evee muuraw Hill LLC. All Rights Reserved. Submit Assignment Terms of Use | Privacy Center Accessibility