Answers: 1
Physics, 22.06.2019 11:00
If a simple machine reduces the strength of a force, what must be increased?
Answers: 3
Physics, 22.06.2019 23:50
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 02:30
Aprotein molecule in an electrophoresis gel has a negative charge.the exact charge depends on the ph of the solution, but 30 excesselectrons is typical. what is the magnitude of the electric forceon a protein with this charge in a 1500 n/c electric field?
Answers: 3
Calculer l intensité du courant qui le traverse...
Mathematics, 22.05.2020 04:59
Mathematics, 22.05.2020 04:59
Mathematics, 22.05.2020 04:59
Mathematics, 22.05.2020 04:59
Mathematics, 22.05.2020 04:59
Mathematics, 22.05.2020 04:59
Mathematics, 22.05.2020 04:59
Mathematics, 22.05.2020 04:59
Mathematics, 22.05.2020 04:59
Mathematics, 22.05.2020 04:59