Physics, 31.07.2020 18:01, janeekajones08
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6. Assume a position vs time graph displays a horizontal line, what does this represent?
A. Constant Velocity
B. 0 Acceleration
Answers: 3
Physics, 22.06.2019 00:30, WorkingButNotReally
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 13:00, mandilynn22
Nacidified solution was electrolyzed using copper electrodes. a constant current of 1.18 a caused the anode to lose 0.584 g after 1.52 ✕ 103 s. given that the charge of an electron is 1.6022 ✕ 10−19 c, calculate avogadro's number. assume that copper is oxidized to cu2+ ions.
Answers: 1
Physics, 22.06.2019 15:30, salehabajwa101
What are the similarities & differences between a thermistor and a light dependent resistor in physics?
Answers: 1
Physics, 22.06.2019 21:30, chasechevy13
Which of the following best describes the circuit shown below?
Answers: 3
Help!
6. Assume a position vs time graph displays a horizontal line, what does this represent?
Mathematics, 14.01.2021 23:40
Mathematics, 14.01.2021 23:40
Mathematics, 14.01.2021 23:40
Mathematics, 14.01.2021 23:40
Mathematics, 14.01.2021 23:40