1.
<span><span>B. compression
</span>2.<span> </span></span>
C. tuning fork when struck
The force ffrom the ground that holds the rock up and prevents her from falling through the gound, unless the ground breaks.
The skier's speed at time <em>t</em> is
<em>v</em> = (23 m/s²) <em>t</em>
To reach a speed of 9.3 m/s, the skier would need
9.3 m/s = (23 m/s²) <em>t</em>
<em>t</em> = (9.3 m/s) / (23 m/s²)
<em>t</em> ≈ 0.404 s
Answer:
easier topics require less time to review
Explanation:
