Which is true about surface waves?
a. the disturbance does not have a specific motion.
b. the disturbance is in a circular motion.
c. the disturbance is only parallel to the motion of the wave.
d. the disturbance is only perpedicular to the motion of the wave.

Acurve connects the data points that are plotted. (physical science chapter 11 motion)

Which statement is true? a. kepler's laws apply only to the motion of earth. b. kepler's laws can be used to predict eclipses. c. kepler's laws are true for a central force that is directly proportional to distance. d. kepler's laws can be deduced from newton's laws of motion and gravity.

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.