How does the action of wind affect a rock’s appearance? As an agent of erosion, the wind will chemically change the composition of a rock.

As an agent of erosion, the wind will quickly break the rock into different rock types.

As an agent of weathering, the wind will slowly break down a rock into smaller particles.

As an agent of weathering, the wind has to interact with water to affect a rock’s appearance.

What sort of waves exhibit the doppler effect?

Wo small variable-thrust jets are actuated to keep the spacecraft angular velocity about the z-axis constant at ? 0 = 1.16 rad/s as the two telescoping booms are extended from r1 = 1.18 m to r2 = 4.69 m at a constant rate over a period of 124 seconds. the small 19-kg experiment modules at the ends of the booms may be treated as particles, and the mass of the rigid booms is negligible. determine the necessary thrust t for each jet as a function of time where t = 0 is the time when the telescoping action is begun. after you have the general expression for t, answer the questions. show work.

Calculate a pendulums frequency of oscillation (in hz) if the pendulum completes one cycle in 0.5s.