An electron with kinetic energy 2.9 kev moving along the positive direction of an x axis enters a region in which a uniform electric field of magnitude 7.5 kv/m is in the negative direction of the y axis. a uniform magnetic field is to be set up to keep the electron moving along the xaxis, and the direction of the field is to be chosen to minimize the required magnitude of the field. what is the magnitude of the magnetic field in mt?
Answers: 3
Physics, 22.06.2019 20:10, hncriciacheichi
Two cannon balls weighing 18 kg and 24 kg are chained together and fired horizontally with a velocity of 165 m/s from the top of a 21-m wall. the chain breaks during the flight of the cannonballs and the 18-kg cannonball strikes the ground at t = 1.5 s, at a distance of 240 m from the foot of the wall, and 7 m to the right of the line of fire. determine the position of the other cannonball at that instant. neglect the resistance of the air.
Answers: 1
Physics, 22.06.2019 22:30, ElmerRamirez
Suppose astronomers built a 140-meter telescope. how much greater would its light-collecting area be than that of the 10-meter keck telescope? express your answer using two sign
Answers: 3
Physics, 23.06.2019 06:30, Roninsongrant
What surface does the epithelial tissue cover? a. the surface of the body b. lines internal organs c. forms many glands d. all of the above
Answers: 3
An electron with kinetic energy 2.9 kev moving along the positive direction of an x axis enters a re...
Mathematics, 06.02.2021 21:30
Mathematics, 06.02.2021 21:30
Mathematics, 06.02.2021 21:30
Mathematics, 06.02.2021 21:30
Mathematics, 06.02.2021 21:30
Mathematics, 06.02.2021 21:30