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Course Congents HOMEWORK Set 9 (due Weds 11/27 at 11:59PM) Speeding RoCK StT An intergalactic rock...
An intergalactic rock star bangs his drum every 1.30 s. A person on earth measures that...
An intergalactic rock star bangs his drum every 1.30 s. A person on earth measures that the time between beats is 2.50 s. How fast is the rock star moving relative to the earth?
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...
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 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...
Course Contents » » Homework Set #8 (due tues 3/27 at 11:59PM) » Laminar flow concepts...
Course Contents » » Homework Set #8 (due tues 3/27 at 11:59PM) » Laminar flow concepts O Timer ? Notes d Evaluate (feedback-Print nInfo The figure illustrates flow through a pipe with diameters of 1.0 mm and 2.0 mm and with different elevations. Px is the pressure in the pipe, and V is the speed of a non-viscous incompressible fluid at locations x = Q,R,S,T or U D-1mm D-2 m PRis... Po B PR?S PT. VT is2VQ VT is Vu...
Course Contents.. » Set 8 (due Thurs 3/ 29 at 11:59PM) Height of Image Tin A...
Course Contents.. » Set 8 (due Thurs 3/ 29 at 11:59PM) Height of Image Tin A 0.54 cm high object is placed 8.6 cm in front of a diverging lens whose foca?length is 7.5 cm what s the height of the image? Incorrect. Tries 2/20 Previous Tries Post Discussion
Course Contents Homework Set (due Thurs 3/2B at 11:59PM) Optical Element TimerNotesaFeedback Prin...
Course Contents Homework Set (due Thurs 3/2B at 11:59PM) Optical Element TimerNotesaFeedback Print In the 7 diagrams below, the solid arrow represents the object and the dashed arrow the image. The rectangle shows the position of an SINGLE OPTICAL ELEMENT. Match each diagram with the appropriate optical element. Plane Mirrorv Diverging Lens ▼ Converging Lens Concave Mirror ▼ Convex Mirror Diverging Lens , Concave Mirror First, is it a Lens or a Mirror? For a SINGLE ELEMENT, a Real image...
Course Contents Homework » Set 1 (due Thurs 1/17 at 11:59PM) » Vector addition B? With...
Course Contents Homework » Set 1 (due Thurs 1/17 at 11:59PM) » Vector addition B? With the diagram and the data answer the question: What is the magnitude of A 0»: 4X 0 DATA: 1 36.60, 2° 146.80, A-3.3cm, B-6.5cm The fig ure is op teo of lector adition. You have to add the x and y components independently and t The figure is not to scale. 0.0477 mm Submit An er Incorrect. Tries 3/6 Previous Tries
aih enu Contents Grades Course Contents » » Homework set #3 (due Tues 9/25 at O...
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...
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 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...
Course Contents » » Homework Set #8 (due tues 3/27 at 11:59PM) » Laminar flow concepts O Timer ? Notes d Evaluate (feedback-Print nInfo The figure illustrates flow through a pipe with diameters of 1.0 mm and 2.0 mm and with different elevations. Px is the pressure in the pipe, and V is the speed of a non-viscous incompressible fluid at locations x = Q,R,S,T or U D-1mm D-2 m PRis... Po B PR?S PT. VT is2VQ VT is Vu...
Course Contents.. » Set 8 (due Thurs 3/ 29 at 11:59PM) Height of Image Tin A 0.54 cm high object is placed 8.6 cm in front of a diverging lens whose foca?length is 7.5 cm what s the height of the image? Incorrect. Tries 2/20 Previous Tries Post Discussion
Course Contents Homework Set (due Thurs 3/2B at 11:59PM) Optical Element TimerNotesaFeedback Print In the 7 diagrams below, the solid arrow represents the object and the dashed arrow the image. The rectangle shows the position of an SINGLE OPTICAL ELEMENT. Match each diagram with the appropriate optical element. Plane Mirrorv Diverging Lens ▼ Converging Lens Concave Mirror ▼ Convex Mirror Diverging Lens , Concave Mirror First, is it a Lens or a Mirror? For a SINGLE ELEMENT, a Real image...
Course Contents Homework » Set 1 (due Thurs 1/17 at 11:59PM) » Vector addition B? With the diagram and the data answer the question: What is the magnitude of A 0»: 4X 0 DATA: 1 36.60, 2° 146.80, A-3.3cm, B-6.5cm The fig ure is op teo of lector adition. You have to add the x and y components independently and t The figure is not to scale. 0.0477 mm Submit An er Incorrect. Tries 3/6 Previous Tries
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...
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