Given the image here are the questions
i. Which runner, if either, is in the lead when t = 6.0 seconds? Justify your answer qualitatively without any equations.
ii. Justify your answer about which runner, if either, is in the lead when t=6.0 seconds using appropriate equations.
THANK YOU
Answers: 3
Physics, 22.06.2019 00:30
Comedians like to joke that the reason we haven’t been visited by intelligent life from elsewhere in the universe is that aliens have been monitoring earth’s broadcasts of intellectually embarrassing tv programs, like gilligan’s island, fear factor, the jersey shore, and the jerry springer showand so consider us far too primitive to merit a visit. let’s check the assertion that aliens could have been receiving them. tv programs are broadcast at a frequency of about 100mhz with about 100kw of total power in 30frames per second, which emanatesroughly uniformly in all directions. assume that interstellar space transmits these broadcasts without attenuation. no matter how smart they are, aliens would require at least one photon per frame to interpret our signals. findthe number of photons per unit time per unit area reaching a receiver on a possible planet in the nearest star system, which is about 4 light-years away (a light-year is the distance light travels in a year). if aliens aimed a receiver or detector directly at earth, how big (in diameter) would it have to be to receive a photon per frame
Answers: 2
Physics, 22.06.2019 04:50
Unpolarized light whose intensity is 1.19 w/ is incident on a polarizer. (a) what is the intensity of the light leaving the polarizer? (b) if the analyzer is set at an angle of = 41.0∘ with respect to the polarizer, what is the intensity of the light that reaches the photocell?
Answers: 1
Physics, 22.06.2019 08:00
Which graph represents motion with an object with positive velocity that is located at a position of 3 meters at a time of 0 seconds? a) a b) bb eliminate c) c d) d
Answers: 1
Physics, 23.06.2019 00:30
Which of the following is a true statement about the acceleration ~a of the pendulum bob ~a is equal to the acceleration due to gravity. ~a is perpendicular to the bob’s trajectory. ~a is equal to the instantaneous rate of change in velocity. ~a is tangent to the bob’s trajectory.
Answers: 1
Given the image here are the questions
i. Which runner, if either, is in the lead when t = 6.0 sec...
Mathematics, 29.01.2021 19:30
Computers and Technology, 29.01.2021 19:30
Mathematics, 29.01.2021 19:30
Mathematics, 29.01.2021 19:30
Mathematics, 29.01.2021 19:30
Mathematics, 29.01.2021 19:30
Physics, 29.01.2021 19:30
Mathematics, 29.01.2021 19:30
Physics, 29.01.2021 19:30
Mathematics, 29.01.2021 19:30