Draw your own transverse wave in the box below. Label the crest, trough, wavelength, amplitude, and frequency. The dotted line represents the rest position between 0 and 1 second. \( \begin{array}{l}\text { sec. }\end{array} \)

85 Un pannello di MDF, una fibra di legno utilizzata per mobili componibili, ha spessore \( (14,0 \pm 0,2) \mathrm{mm} \) e forma rettangolare con lati \( (60,0 \pm 0,1) \mathrm{cm} \) e \( (80,0 \pm 0,1) \mathrm{cm} \); la sua massa è \( (5600 \pm 20) \mathrm{g} \). Le specifiche del prodotto in- dicano che il materiale ha densità \( 850 \mathrm{~kg} / \mathrm{m}^{3} \), con tolle- ranza dell' \( 1 \% \). Calcola la densità del pannello in base ai valori mi- surati.

Sloths are known for being slow. An average tree sloth moves at a speed of \( 0.743 \mathrm{~m} / \mathrm{s} \). T the nearest second, how long does it take a sloth to travel 22.3 m at this speed?

f Steve throws the football 50 meters in 3 seconds, what is the average speed of the football? (nearest hundredth) If it takes Ashley 3 seconds to run from the batters box to first base at an average spe of 6.5 meters per second, what is the distance she covers in that time? \( \begin{array}{l}\text { Bart ran } 5000 \text { meters from the cops and an average speed of } 8 \text { meters/second before } \\ \text { he got caught. How long did he run? }\end{array} \)

What will happen to the speed of a ball after it is thrown upward into the air? \( \begin{array}{ll}\text { A. Increnses } & \text { C. increases and then d }\end{array} \)

1. A 0.500 g (small) mass on the end of a 1.70 m long string is pulled aside \( 20^{\circ} \) from the vertical and shoved downward (toward the bottom of its motion) with a speed of \( 2.4 \mathrm{~m} / \mathrm{s} \). (a) Is the angle on the other side greater than, less than, or the same as the angle on the initial side \( \left(20^{\circ}\right) \) ? Explain in terms of energy. (5pts) (b) Calculate the angle it goes to on the other side, neglecting air resistance. ( 10 pts )