Runners in a 400 m race
complete one circuit of a
track. what is their
displacement a...
Physics, 17.10.2019 20:10, Roberto2014
Runners in a 400 m race
complete one circuit of a
track. what is their
displacement at the end of
the race?
Answers: 1
Physics, 22.06.2019 11:00, vanvalenpeyt
The star betelgeuse is about 600 light-years away. if it explodes tonight, a. we'll know because debris from the explosion will rain down on us from space. b. we'll know it immediately because it will be brighter than the full moon in the sky. c. we won't know about it until 600 years from now. d. none of the above.
Answers: 3
Physics, 22.06.2019 19:00, freddhendrickss
The built in flash in a compact camera is usally capable of giving correct exsposure for distance up to how many meters?
Answers: 1
Physics, 22.06.2019 23:50, jazzzzhands21
An alpha particle with kinetic energy 12.5 mev makes a collision with lead nucleus, but it is not "aimed" at the center of the lead nucleus, and has an initial nonzero angular momentum (with respect to the stationary lead nucleus) of magnitude l = p0 b, where p0 is the magnitude of the initial momentum of the alpha particle and b=1.40ร10โ12 m. (assume that the lead nucleus remains stationary and that it may be treated as a point charge. the atomic number of lead is 82. the alpha particle is a helium nucleus, with atomic number 2.) what is the distance of closest approach?
Answers: 2
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