1 Point
Liz and Jacqueline each hit a golf ball off the top of an ocean cliff. Liz's ball
has a horizontal velocity of 20 m/s and a vertical velocity of 1 m/s.
Jacqueline's ball has a horizontal velocity of 20 m/s and a vertical velocity of
2 m/s. Which of the following statements is true?
A. The two balls will stay in the air the same time, but Jacqueline's
will travel farther.
B. The two balls will stay in the air the same time, but Liz's will travel
farther.
O o o
C. Jacqueline's ball will stay in the air longer and travel farther.
W
D. Liz's ball will stay in the air longer and travel farther.
O
SUBMIT

Consider a uniformly charged ring in the xy plane, centered at the origin. the ring has radius a and positive charge qdistributed evenly along its circumference. a)what is the direction of the electric field at any point on the z axis? . b)what is the magnitude of the electric field along the positive z axis? use k in your answer, where k=14πϵ0. d)the ball will oscillate along the z axis between z=d and z=−d in simple harmonic motion. what will be the angular frequency ω of these oscillations? use the approximation d≪a to simplify your calculation; that is, assume that d2+a2≈a2. express your answer in terms of given charges, dimensions, and constants