When an object is in free fall we disregard the effect that air resistance would have in slowing down the object. So if a 10 kg object is in free fall and allowed to fall for 20 s what will be the final velocity at the end of this time? Remember: Vf=vi+at and if unless specified vi=0m/s and a=9.81m/s^2

Which statement is true for light passing into a medium that is more optically dense than the first medium through which it past

Asatellite component is in the shape of a cube with 10cm edges, has an evenly distributed mass of 2 kg and one bolt hole at each of four corners. if the maximum predicted random vibration environment is 10 grms, what bolt size would be a good choice for restraint? what other factors might drive bolt size besides force/stress?

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.