If a photon produces an electron-positron pair and one other particle, the other particle may be a(n)
a. muon.
b. antineutrino.
c. neutrino.
d. photon.
d
Physics & Space Science
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Terrestrial planets, like Earth, are made up of rock and metal
a. True b. False Indicate whether the statement is true or false
Physics & Space Science
The magnetic field due to the current in a long, straight wire is 8.0 ?T at a distance of 4.0 cm from the center of the wire. What is the current in the wire?
A) 0.20 A B) 0.40 A C) 0.80 A D) 3.2 A E) 1.6 A
Physics & Space Science
A camera has a converging lens with a focal length of 56 mm. If the f-number is 2.8, what is the diameter of the lens (in mm)?
a. 10 b. 31 c. 0.50 d. 20 e. 50
Physics & Space Science
The metric prefix that means one thousand is
a. milli- b. centi- c. one- d. kilo- e. mega-
Physics & Space Science