2. Starting from rest, a racecar has a displacement of 201 m south while accelerating at 16 m/s?. Calculate the time it takes the car to travel the 201 m.

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A5 foot by 5 foot box culvert is buried 6 feet beneath the surface of the ground. a crosssection of this very long culvert (into and out of the page) is illustrated below. assume that the soil in which the culvert is buried has the following properties: jt = 120 pcf, w = 12%, ko = 0.50, ka = 0.33, and kp = 3.00. calculate the total horizontal force per unit length of culvert (fh) felt on one of the vertical faces of the culvert.

Describe how the motion of a spring being pushed forward and backward is similar to the motion of air particles in a sound wave.

Metals are good conductors of electricity because they