The next two questions share the same information Base your answers to questions 37 and 38 on the information and diagram below. A string is connected to a mechanical oscillator on one end and to a cube-shaped mass, m = 8.0 kg, at the other end as shown. The oscillator vibrates the string with a frequency of f producing the standing wave in the figure on the left. When the mass is submerged completely in water, the string vibrates in the standing wave pattern shown on the right.

A string is connected to a mechanical oscillator on one end and to a cube-shaped mass, m = 8.0 kg, at the other end as shown. The oscillator vibrates the string with a frequency of f producing the standing wave in the figure on the left. When the mass is submerged completely in water, the string vibrates in the standing wave pattern shown on the right.

The next two questions share the same information Base your answers to questions 39 and 40 on the information and diagram below. An object moves in a circle, starting at the top, with initial speed 17.0 m/s. The object’s speed increases uniformly until it has moved counterclockwise through an angle of 55°. The average acceleration for this motion is 9.8 m/s^{2} directed straight downward.

An object moves in a circle, starting at the top, with initial speed 17.0 m/s. The object’s speed increases uniformly until it has moved counterclockwise through an angle of 55°. The average acceleration for this motion is 9.8 m/s^{2} directed straight downward.