Multiple Choice 1 point On a summer day, the the temperature rises from 65 degrees at night to 95 degrees in the afternoon. What happens to the volume The air contracts. The volume of the air is unaffected. Multiple Choice 1 point The air contracts. The air expands. The air is unaffected. Whatspens to the air inside of your head when you swim to the bottom of a swimming pool? What happens to the air inside of a fish when it is rapidly pulled up from the deep ocean? The air expands, causing the fish to explode. The air cintracts, causing the fish to implode. The air is unaffected.

1 ¿Que Ruerza se requiere para detoner una bola de 16 gr que viaja a una velocida de \( 260 \mathrm{~m} / \mathrm{s} \) y penetra una distancia de 12 cm en un bloque de madera?

A cantilever of beam of sizo \( 100 \times 100 \mathrm{~mm} \) with the length of 2 m is secured on the wall on or side and anther side a load of 10 kN is acting vertically down. What is the reat reactio force and moment on the wall?

2. Calcular el periodo de oscilación de una masa de Kg , sujeta a un resorte de constante de elasticidad d \( \mathrm{N} / \mathrm{m} \). 3. Determinar el período de un péndulo y su frecuen si su longitud es de 45 cm .

3. Detemminar el periodo do un péndulo y su frocuenc si su lorgitud as de 45 cm .

OPEN-ENDED QUESTION What determines how much a wave diffracts when it meets and obstacle or opening?