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There are two courses ................ PHYS151 PHYS152 need help with both courses. Attached is the syllabus. Please check and let me know if you could help. Reply in message, I am waiting .........................
A snowshoer falls off a ridge into a snowbank 3.6 m below and penetrates 0.8 m into the snow before stopping. What is her average acceleration in the snowbank?
28 Marks Total ASSIGNMENT 14 Compton, de Broglie, and Wave-Particle Duality (1) There are similarities and differences between the Photoelectric Effect and Compton Scattering. Complete each of the six partial statements below using the following guide; all you need to provide for an answer is PE, CS, BOTH, or NEITHER. • PE if the statement only applies to the Photoelectric Effect • CS if the statement only applies to Compton Scattering • BOTH if the statement only applies to both the Photoelectric Effect and Compton Scattering • NEITHER if the statement applies to Neither the Photoelectric Effect or Compton Scattering a. Energy is conserved in _____. Answer: (1) b. Photons are observed before and after the interaction in _____. Answer: (1) c. Electrons are observed as the result of the experiment in _____. Answer: (1) d. Angles are measured in the experiment in _____. Answer: (1) e. Photons with very low energies such as 5.0 to 10.0 eV is observed in _____. Answer: (1) f. Ionization occurs in _____. Answer: (2) 2. What quantity measured in the Compton effect experiment show the wave-particle duality of light? Answer: (5) 3. An X-ray with a frequency of 3.74 × 1020 Hz is incident on a thin piece of metal. The lower frequency X-ray on the other side is observed deflected at 48o. What is the frequency of the deflected X-ray? Answer: (5) 4. A scientist changes the frequency of an incident X-ray to 4.50 × 1019 Hz and measures the deflected X-ray frequency of 4.32 × 1019 Hz. What was the angle of deflection? Answer: (2) 5. Can the equation E = pc be applied to particles? Why or why not? Answer: (3) 6. A stationary hydrogen atom with a mass of 1.67 × 10-27 kg absorbs a photon of light with 10.2 eV. What is the velocity of the hydrogen atom after absorbing the photon in a perfectly inelastic collision? Answer: (2) 7. Describe the results of performing Young’s experiment with x-rays and then high speed electrons. Answer: (2) 8. How do the results of performing Young’s experiment with x-rays and then high speed electrons support the wave-particle model? Answer: (1) 9. All of the following quantities can be measured or calculated for light waves and subatomic particles except _____. A. momentum B. velocity C. frequency D. energy Answer:
1) A rocket moves upward, starting from rest with an acceleration of 29.4 m/s2 for 8.00 s. It runs out of fuel at the end of the 8.00 s but does not stop. How high does it rise above the ground? m 2) Two students are on a balcony 16.6 m above the street. One student throws a ball vertically downward at 16.7 m/s. At the same instant, the other student throws a ball vertically upward at the same speed. The second ball just misses the balcony on the way down. (Assume the positive direction is upward.) (a) What is the difference in the time the balls spend in the air? s (b) What is the velocity of each ball as it strikes the ground? ball thrown downward m/s ball thrown upward m/s (c) How far apart are the balls 0.800 s after they are thrown? m 3) A small fish is dropped by a pelican that is rising steadily at 0.55 m/s. (Assume the positive direction is upward.) (a) After 3.0 s, what is the velocity of the fish? m/s (b) How far below the pelican is the fish after 3.0 s? m 4) A parachutist descending at a speed of 25.0 m/s loses a shoe at an altitude of 40.0 m. (Assume the positive direction is upward.) (a) When does the shoe reach the ground? s (b) What is the velocity of the shoe just before it hits the ground? m/s 5) A mountain climber stands at the top of a 50.0 m cliff hanging over a calm pool of water. The climber throws two stones vertically 1.1 s apart and observes that they cause a single splash when they hit the water. The first stone has an initial velocity of 2 m/s. (Assume the positive direction is upward.) (a) How long after release of the first stone will the two stones hit the water? s (b) What is the initial velocity of the second stone when it is thrown? m/s (c) What will the velocity of each stone be at the instant both stones hit the water? first stone m/s second stone m/s 6) A model rocket is launched straight upward with an initial speed of 60.0 m/s. It accelerates with a constant upward acceleration of 6.0 m/s2 until its engines stop at an altitude of 150 m. (a) What is the maximum height reached by the rocket? m (b) How long into the flight does the rocket reach maximum height? s (c) How long is the rocket in the air? s
the world speed record on water was set october 8,1978 by Ken Warby of Blowering Dam,Australia. If Ken drove his motorboat a distance of 1000. m in 7.045 s, how fast was his boat moving a) in m/s? b) in mi/h?
