36. * BIO Body cell X-raya. A body cell of 1.0 × 10-5-m radius absorbs 4.2 × 10-14 J of X-ray radiation. If theenergy needed to produce one positively charged ion is 100 eV, how manypositive ions are produced in the cell?b. How many ions are formed in the 3.0 × 10-6-m-radius nucleus of that cell (theplace where the genetic information is stored)? Indicate any assumptions that youmade.

Step 1:Radius of the body cell is 1×10−5mEnergy absorbed by the body cell is 4.2×10−14JEnergy…

Answered: 36. * BIO Body cell X-ray a. A body…

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter29: Introduction To Quantum Physics

Section: Chapter Questions

Problem 19PE: Unreasonable Results (a) What is the binding energy of electrons to a material from which 4.00-eV...

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In Millikan's oil-drop experiment, one looks at a small oil drop held motionless between two plates. Take the voltage between the plates to be 2033 V, and the plate separation to be 2.00 cm. The oil drop (of density 0.81 g/cm3) has a diameter of 4.0106 m. Find the charge on the drop, in terms of electron units.
(a) Calculate the mass of a proton using the charge-to-mass ratio given for it in this chapter and its known charge. (b) How does your result compare with the proton mass given in this chapter?
Unreasonable Results (a) What is the binding energy of electrons to a material from which 4.00-eV electrons are ejected by 400-nm EM radiation? (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent?
A chain of nuclear reactions in the Suns core converts four protons into a helium nucleus. (a) What is the mass difference between four protons and a helium nucleus? (b) How much energy in MeV is released during the conversion of four protons into a helium nucleus?
Identify the following objects as being either ... a. positive b. negative c. neutral If there is no conclusive evidence, then select all that could be true. Description of Object a, b, or c? i. An object possesses more protons than electrons. ii. An object possesses more neutrons than electrons. iii. A formerly neutral object that just lost some electrons. iv. A formerly neutral object that just gained some electrons. v. An object which attracts a negatively-charged balloon. vi. An object which attracts neutral paper bits and attracts a negatively-charged balloon. vii. An object which attracts neutral attracts paper bits and repels a negatively-charged balloon. viii. An object which attracts a negatively-charged balloon and attracts a positively-charged balloon. ix. An object which attracts a charged balloon (balloon A) which is attracted to a negatively-charged balloon (balloon B). x. An object which attracts a…
Direction: Answer the following.1. This particle is found in the nucleus and has no chargea. Neutron b. Proton c. Electron d. Orbital2. This particle is found in the nucleus and has a positive chargea. Electron b. Proton c. Neutron d. Neutral3. This is a negatively charged particle found outside the nucleusa. Electron b. Proton c. Neutron d. Neutral4. What is the Law of Conservation of mass?a. Mass is created in a chemical reactionb. Mass is created in a physical changec. New chemicals formed from a chemical reaction have a largeroverall mass than the original reactantsd. Mass is never created or destroyed5. Which of the following are Subscripts in this Chemical Formula: 3Fe2O4a. 3,4b. 3,2c. 2,4
A certain element (E) has three isotopes with the masses 23.9858 amu, 24.9858 amu, and 25.9826 amu. The average atomic mass of this element is 24.31 amu. Which of the following statements are TRUE? I. The chemical symbol of this element is 24E II. 25E has 25 neutrons III. We can identify the most abundant isotope IV. The nucleus of 26E has the largest positive charge Select one: O a. II O b. I, Il and IV O cl O d. II O e.l and III
3. Draw a graph showing how the potential energy changes when two protons approach each other and fuse to form deuterium. We will be drawing this graph in two parts! a. Explain how the PE changes in terms of forces where the electromagnetic force is in operation (about 10-14 to 10-13 m). Draw just the part of the graph where the electromagnetic force is in operation (about 10-14 to 10-13 m). Put PE on the Y axis and distance on the X axis. b. Explain how the PE changes in terms of forces when the strong nuclear force comes into operation (smaller than 10-14 m). Now just draw the part of the graph showing what happens when the strong nuclear force comes into operation (smaller than 10-14 m).
Which of the following statements is NOT true regarding electric charges? O a. Electric charges are conserved O b. Electric charges are quantized O. A neutral atom contains equal more positive charges than negative charges Od. The S.I. unit for electric charge is Coulomb
12. Which of the following statements is not true for an electric charge? a. When an atom loses an electron, it becomes positively charged b. Electric charge is quantized c. Electric charge is not conserved d. For a positively charged object, the electric field lines are directed outwards 13. The gravitational potential energy of a 500kg elevator at the top of a building, 450m above the ground level is a. 2.205kJ b. 2.205MJ c. 0.225MJ d. 2.205GJ

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