Physics, 21.08.2019 02:20 maddy121209
In the presence of a nucleus the energy of a y-ray photon can be converted into an electron-positron pair. calculate the minimum energy for this to occur and thus the frequency of such a photon. hint: use e = mc2.]
Answers: 1
Physics, 21.06.2019 17:50
The slotted link is pinned at o, and as a result of rotation it drives the peg p along the horizontal guide. compute the magnitude of the velocity and acceleration of p along the horizontal guide. compute the magnitudes of the velocity and acceleration of p as a function of θ if θ=(3t) rad, where t is measured in seconds.
Answers: 1
Physics, 22.06.2019 09:30
Acar traveling at 22 m/s starts to decelerate steadily. it comes to a complete stop in 15 seconds. what is it’s acceleration?
Answers: 1
Physics, 22.06.2019 21:10
A10-kg isto a of 10 m at aa0.9 kg/m.30 kg of ,at aas10-m .. ( 9.8 m/s2 g.)
Answers: 3
Physics, 22.06.2019 22:30
Atennis player used a tennis racket to hit a tennis ball with a mass of 0.25 kg with a force of 5.25 newtons. how does the force the tennis racket exerted on the tennis ball compare with the force the tennis ball exerted on the tennis racket? a. the force of the tennis racket on the tennis ball is equal in magnitude and opposite in direction to the force the tennis ball exerted on the tennis racket. b. the force of the tennis racket on the tennis ball is equal in magnitude and in the same direction as the force the tennis ball exerted on the tennis racket. c. the force of the tennis racket on the tennis ball is less in magnitude and in the same direction as the force the tennis ball exerted on the tennis racket. d. the force of the tennis racket on the tennis ball is greater in magnitude and opposite in direction as the force the tennis ball exerted on the tennis racket.
Answers: 1
In the presence of a nucleus the energy of a y-ray photon can be converted into an electron-positron...
Mathematics, 18.10.2019 20:30
Mathematics, 18.10.2019 20:30
Social Studies, 18.10.2019 20:30
Mathematics, 18.10.2019 20:30
Social Studies, 18.10.2019 20:30
Mathematics, 18.10.2019 20:30
History, 18.10.2019 20:30
English, 18.10.2019 20:30