Homework Answers
Converting the energy unit kilotons of tnt to Joule: 1 kiloton of tnt = 4.184 * 1012 J
400 kilotons = 400 * 4.184 * 1012 J
Power produced by the power plant = 1 GW = 1 * 109 J / s
Time taken = Energy / power = 400 * 4.184 * 1012 / 109 = 1.674 * 106 s
= 1.674 * 106 / (60 * 60 * 24) days = 19.38 days
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how many net atoms
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Course Contents ..» HW Week 04 - due Evaluate Feedback Timer Notes Info Print Child Slide on Due in 4 hours, 9 minu...
Course Contents ..» HW Week 04 - due Evaluate Feedback Timer Notes Info Print Child Slide on Due in 4 hours, 9 minutes A 21.2 kg child slides down a long slide in a playground. She starts from rest at a height h1 of 26.9 m. When she is partway down the slide, at a height h2 of 14.3 m, she is moving at a speed of 5.00 m/s. Calculate the mechanical energy lost due to friction (as heat, etc...)...
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Print Inf Course Contents > ... > Bonus HW due Timer Notes Evaluate Feedback The heat of vaporization of water is 540 cal/g, and the heat of fusion is 80 cal/g. The heat capacity of liquid water is 1 calg-1 0-1, and the heat capacity of ice is 0.5 cal 3-10-1 22 g of ice at -19 C is heated until it becomes liquid water at 40°C. How much heat in calories was required for this to occur? Submit Answer...
Main Menu Contents Grades Syllabus Course Contents> ... >> HW #11 due Mon 4/13 at 11...
Main Menu Contents Grades Syllabus Course Contents> ... >> HW #11 due Mon 4/13 at 11 am > mirror match_concave.problem 1 2 3 4 5 6 7 8 B Match the following objects with the images that are formed by the concave mirror Arrow 1 Arrow 2 Arrow 3 Arrow 4 Arrow 5 Arrow 7 Arrow 8 Submit Answer Tries 0/2 Post Discussion 1 Type here to search PHYS 202 (Spring 2020) Pantea Ghadakpour (Student - section: 022) Main Menu...
Course Contents HOMEWORK Set 10 de Energy, number of shells, orbits. • Timer Notes Evaluate Feedback...
Course Contents HOMEWORK Set 10 de Energy, number of shells, orbits. • Timer Notes Evaluate Feedback Prime Consider a Hydrogen atom with the electron in the n 8 shell. What is the energy of this system? (The magnitude of the ground state energy of the Hydrogen atom is 13.6 eV.) Submit Roswer Tries 0/20 How many subshells are in this shell? Submit Answer Tries 0/20 How many electron orbits are in this main shell? Sumit Answer Tries 0/20 How many...
Course Contents HOMEWORK Set 9 ( due Weds 11 ... Photoelectric effect (2) • Timer Notes...
Course Contents HOMEWORK Set 9 ( due Weds 11 ... Photoelectric effect (2) • Timer Notes Evaluate Feedback The work function of a certain metal is Q = 2.95 eV. Determine the minimum frequency of light fo for which photoelectrons are emitte from the metal. (Planck's constant is: h = 4.1357x10-15 eVs.) Submit Answer Tries 0/20 Determine the corresponding wavelength of light. (Possibly useful constant: hc - 1240 eVnm.) Submit Answer Tries 0/20 Calculate the kinetic energy of the emitted...
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aih enu Contents Grades Course Contents » » Homework set #3 (due Tues 9/25 at O Timer ] Notes ฮ่ Evaluate @Feedback-Prin r Ablock is at rest on a plank whose angle can be varied. The angle is gradually increased from O deg. At 32.o, the block starts to slide down the incline, traveling 3,20 m down the incline in 2.40 s. Calculate the static friction between the block and the plänk. If static friction acts on the block, does...
Course Contents > HOMEWORK Set 10 (due Weds 1974 at 11:59PM) Carbon-14 dating - Timer Notes...
Course Contents > HOMEWORK Set 10 (due Weds 1974 at 11:59PM) Carbon-14 dating - Timer Notes Evaluate Feedback Print The age of a piece of wood from an archeological site is to be determined using the Carbon-14 method. The activity of the sample is measured to be 0.670 times the Carbon-14 activity of living plants. What is the age of the sample in years? (The half-life of the Carbon- 14 isotope is 5730 years.) 2292 Sub Answer Incorrect. Tries 1/20...
Course Contents HOMEWORK Set 10 (due Weds 12/4 at 11:59PM) Carbon-14 dating Timer Notes Evaluate ,...
Course Contents HOMEWORK Set 10 (due Weds 12/4 at 11:59PM) Carbon-14 dating Timer Notes Evaluate , Feedback Print The age of a piece of wood from an archeological site is to be determined using the Carbon-14 method. The activity of the şample is measured to be 0.670 times the Carbon-14 activity of living plants. What is the age of the sample in years? (The half-life of the Carbon- 14 isotope is 5730 years.) Tries 0/20 Submit Answer Send Feedback G...
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Course Contents > HOMEWORK Set 9 (due Weds 11. Muon Antimuon Collision Tier Notes Evaluate Feedback...
Course Contents > HOMEWORK Set 9 (due Weds 11. Muon Antimuon Collision Tier Notes Evaluate Feedback A muon and an antimuon are moving in opposite directions with velocities of -0.8 c and 0.8 c, respectively. When they collide, they can annihilate each other and turn into two identica photons. Both muon and antimuon have a mass of 105.66 MeV/c. What is the total energy before the collision? Sumit AnswerTres 0/20 What is the energy of each photon? Dom Ante Tries...
Course Contents ..» HW Week 04 - due Evaluate Feedback Timer Notes Info Print Child Slide on Due in 4 hours, 9 minutes A 21.2 kg child slides down a long slide in a playground. She starts from rest at a height h1 of 26.9 m. When she is partway down the slide, at a height h2 of 14.3 m, she is moving at a speed of 5.00 m/s. Calculate the mechanical energy lost due to friction (as heat, etc...)...
Print Inf Course Contents > ... > Bonus HW due Timer Notes Evaluate Feedback The heat of vaporization of water is 540 cal/g, and the heat of fusion is 80 cal/g. The heat capacity of liquid water is 1 calg-1 0-1, and the heat capacity of ice is 0.5 cal 3-10-1 22 g of ice at -19 C is heated until it becomes liquid water at 40°C. How much heat in calories was required for this to occur? Submit Answer...
Main Menu Contents Grades Syllabus Course Contents> ... >> HW #11 due Mon 4/13 at 11 am > mirror match_concave.problem 1 2 3 4 5 6 7 8 B Match the following objects with the images that are formed by the concave mirror Arrow 1 Arrow 2 Arrow 3 Arrow 4 Arrow 5 Arrow 7 Arrow 8 Submit Answer Tries 0/2 Post Discussion 1 Type here to search PHYS 202 (Spring 2020) Pantea Ghadakpour (Student - section: 022) Main Menu...
Course Contents HOMEWORK Set 10 de Energy, number of shells, orbits. • Timer Notes Evaluate Feedback Prime Consider a Hydrogen atom with the electron in the n 8 shell. What is the energy of this system? (The magnitude of the ground state energy of the Hydrogen atom is 13.6 eV.) Submit Roswer Tries 0/20 How many subshells are in this shell? Submit Answer Tries 0/20 How many electron orbits are in this main shell? Sumit Answer Tries 0/20 How many...
Course Contents HOMEWORK Set 9 ( due Weds 11 ... Photoelectric effect (2) • Timer Notes Evaluate Feedback The work function of a certain metal is Q = 2.95 eV. Determine the minimum frequency of light fo for which photoelectrons are emitte from the metal. (Planck's constant is: h = 4.1357x10-15 eVs.) Submit Answer Tries 0/20 Determine the corresponding wavelength of light. (Possibly useful constant: hc - 1240 eVnm.) Submit Answer Tries 0/20 Calculate the kinetic energy of the emitted...
aih enu Contents Grades Course Contents » » Homework set #3 (due Tues 9/25 at O Timer ] Notes ฮ่ Evaluate @Feedback-Prin r Ablock is at rest on a plank whose angle can be varied. The angle is gradually increased from O deg. At 32.o, the block starts to slide down the incline, traveling 3,20 m down the incline in 2.40 s. Calculate the static friction between the block and the plänk. If static friction acts on the block, does...
Course Contents > HOMEWORK Set 10 (due Weds 1974 at 11:59PM) Carbon-14 dating - Timer Notes Evaluate Feedback Print The age of a piece of wood from an archeological site is to be determined using the Carbon-14 method. The activity of the sample is measured to be 0.670 times the Carbon-14 activity of living plants. What is the age of the sample in years? (The half-life of the Carbon- 14 isotope is 5730 years.) 2292 Sub Answer Incorrect. Tries 1/20...
Course Contents HOMEWORK Set 10 (due Weds 12/4 at 11:59PM) Carbon-14 dating Timer Notes Evaluate , Feedback Print The age of a piece of wood from an archeological site is to be determined using the Carbon-14 method. The activity of the şample is measured to be 0.670 times the Carbon-14 activity of living plants. What is the age of the sample in years? (The half-life of the Carbon- 14 isotope is 5730 years.) Tries 0/20 Submit Answer Send Feedback G...
-) Timber-j Notes course contents » HOMEWORK Set 1 ( due Thurs » Number of electrons leaving Evaluato ' Feedback Print Two spherical objects with a mass of 2.64 kg each are placed at a distance of 3.58 m apart. How many electrons need to leave each object so that the net force between them becomes zero? Submit Answer Tries 20 Post Discussion Send Feedback
Course Contents > HOMEWORK Set 9 (due Weds 11. Muon Antimuon Collision Tier Notes Evaluate Feedback A muon and an antimuon are moving in opposite directions with velocities of -0.8 c and 0.8 c, respectively. When they collide, they can annihilate each other and turn into two identica photons. Both muon and antimuon have a mass of 105.66 MeV/c. What is the total energy before the collision? Sumit AnswerTres 0/20 What is the energy of each photon? Dom Ante Tries...
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