Physics, 17.03.2020 05:23 jtgarner402
A steady beam of alpha particles (q = + 2e, mass m = 6.68 × 10-27 kg) traveling with constant kinetic energy 22 MeV carries a current of 0.27 µA. (a) If the beam is directed perpendicular to a flat surface, how many alpha particles strike the surface in 2.8 s? (b) At any instant, how many alpha particles are there in a given 16 cm length of the beam? (c) Through what potential difference in volts is it necessary to accelerate each alpha particle from rest to bring it to an energy of 22 MeV?
Answers: 3
Physics, 22.06.2019 00:30, chayaharroch03
Imagine you work as a consultant, and your daily job involves listening to the constructive criticism of others. as part of your job, you must listen to opposing viewpoints to make important decisions. in this activity, you are a consulting dam engineer. you must make a decision about four different dams; should they be repaired, taken down, or left alone? you will listen to contrasting opinions about what should be done with the dams before you make the final decision. as the consulting dam engineer, what do you decide to do with this dam? explain your reasoning. by making your decision, did you support the opinions of the mayor and/or the dam safety official? why or why not? (site 1)
Answers: 1
Physics, 22.06.2019 18:30, leslylinares454
Abaseball is thrown from the outfield toward the catcher. when the ball reaches its highest point, which statement is true? (a)its velocity is not zero, but its acceleration is zero. (b) its velocity and its acceleration are both zero. (c) its velocity is perpendicular to its acceleration. (d) its acceleration depends on the angle at which the ball was thrown. (e) none of the above statements are true.
Answers: 1
A steady beam of alpha particles (q = + 2e, mass m = 6.68 × 10-27 kg) traveling with constant kineti...
History, 22.10.2019 17:00
Chemistry, 22.10.2019 17:00
History, 22.10.2019 17:00
Biology, 22.10.2019 17:00
Mathematics, 22.10.2019 17:00
Mathematics, 22.10.2019 17:00