Physics, 21.04.2020 16:34 QueenBlumple4443
We use a battery to cause a continuous potential difference by getting charges to separate. Explain why the terminals of a battery have to be connected together before current flows. [2]
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 03:00
Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx hurrim timed
Answers: 1
Physics, 23.06.2019 06:30
Aipal measures a circuit at 1.2 a and 24 . using ohm’s law, what can he calculate for the circuit?
Answers: 1
Physics, 23.06.2019 10:00
4. a car with a mass of 2,200 kg can accelerate from 0 to 30 m/s in 6 seconds. a. assuming all of the force generated by the engine goes into acceleration of the car, how much force is the engine producing? show your work. (6 points)
Answers: 1
We use a battery to cause a continuous potential difference by getting charges to separate. Explain...
French, 08.12.2020 18:30
Physics, 08.12.2020 18:30
Biology, 08.12.2020 18:30
Mathematics, 08.12.2020 18:30
Mathematics, 08.12.2020 18:30
Biology, 08.12.2020 18:30
Spanish, 08.12.2020 18:30
Mathematics, 08.12.2020 18:30
Mathematics, 08.12.2020 18:30
Mathematics, 08.12.2020 18:30
Mathematics, 08.12.2020 18:30