Which of these statements describes protons and electrons ? Electrons are positive and can move, while protons
are negative and stay in place
b Electrons are negative and can move, while protons
are positive and stay in place
Electrons are negative and stay in place, while
protons are positive and can move
d
Electrons are positive and stay in place, while
protons are negative and can move
e None of these statements is true

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

Aball is thrown from the top of a building with an initial velocity of 21.9 m/s straight upward, at an initial height of 51.6 m above the ground. the ball just misses the edge of the roof on its way down, as shown in the figure. (a) determine the time needed for the ball to reach its maximum height. (b) determine the maximum height. (c) determine the time needed for the ball to return to the height from which it was thrown, and the velocity of the ball at that instant. (d) determine the time needed for the ball to reach the ground. (e) determine the velocity and position of the ball at t = 5.35 s.

What is the speed vfinal of the electron when it is 10.0 cm from charge 1?