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IT AND DO RATE
Suppose a particle called a kaon is created by cosmic radiation striking the atmosphere. Randomized variables...
Suppose a cosmic ray colliding with a nucleus in the Earth's upper atmosphere produces a muon that has speed v= 0.83c. The muon then travels at constant speed and lives 1.5 us as measured in the muon's frame of reference. (You can imagine this as the muon's internal clock.) Randomized Variables v=0.83c t=1.5 us (a) How long does the muon live in seconds) as observed on the Earth? b) How many meters does it travel as observed on the Earth?...
1. Subatomic particles called muons can be created in the upper atmosphere by collisions of cosmic rays (energetic particles coming from astrophysical sources). As we shall see in a few lectures, muons quickly decay (in 2.2 microseconds on average) into other particles. Consider a muon that was created at a height the same as the top of a nearby mountain, traveled straight down towards the Earth through the atmosphere at 0.9 times the speed of light, and then decayed at...
It moves by you at 0.74c, and it lives 1.35 x 10^-8 s when at
rest relative to an observer. How long does it live, in seconds, as
you observe it?
Chapter 28 r1.35 x 10 Grade Sasary Deductions Potential 100%
(15%) Problem 8: Suppose a cosmic ray colliding with a nucleus in the Earth's upper atmosphere produces a muon that has speed v = 0.92c. The muon then travels at constant speed and lives 1.5 us as measured in the muon's frame of reference. (You can imagine this as the muon's internal clock.) Randomized Variables y = 0.92 c t = 1.5 us > * 33% Part (a) How long does the muon live in seconds) as observed on the...
All of the following questions are in relation to the following journal article which is available on Moodle: Parr CL, Magnus MC, Karlstad O, Holvik K, Lund-Blix NA, Jaugen M, et al. Vitamin A and D intake in pregnancy, infant supplementation and asthma development: the Norwegian Mother and Child Cohort. Am J Clin Nutr 2018:107:789-798 QUESTIONS: 1. State one hypothesis the author's proposed in the manuscript. 2. There is previous research that shows that adequate Vitamin A intake is required...