Aparticle leaves the origin with a speed of 2.1 times 106 m/s at 32 degrees to the positive x axis. it moves in a uniform electric field directed along positive y axis. find ey such that the particle will cross the x axis at x = 1.5 cm if the particle is an electron.

1. find ey such that the particle will cross the x axis at x = 1.5 cm if the particle is an electron.2. find ey such that the particle will cross the x axis at x = 1.5 cm if the particle is a proton.

moving ball hits still ball. mover stops, hit ball moves. momentum transfer.

graphing motion: mastery test

209be

what is the instantaneous acceleration of

the particle at point b?

0 meters/second?

10 meters/second?

12 meters/second?

velocity imetersisecond

15 meters/second?

20

time (seconds)

answer: 0 meters/second^2

pe = weightxheight = 2000x1000=2,000,000joules

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )