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Physics, 22.06.2019 15:30, lexiepedit4958
The movement of electrons between atoms is called an
Answers: 2
Physics, 22.06.2019 21:00, cici65360
What do the atoms of elements in the same group have in common? a. they have the same atomic numbers. b. they have the same average atomic masses. c. they have the same number of electron shells. d. they have the same number of electrons in their outermost shells.
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=1.40×10−12 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
Physics, 23.06.2019 18:00, SmartScholar4094
Diego kicks a soccer ball from the end line. his fellow students time and mark the soccer ball as it moves down the field. the graph represents the ball's progress.
Answers: 3
An 85.0 kg cart is rolling along a level road at 9.00 m/s. The
cart encounters a hill and coasts up...
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