An object falls off a bridge and takes 6.5 seconds to hit the water. (neglect air resistance) a. How high is the bridge?
b. What is the object's average velocity?
C. How fast will the object be traveling just before it hits the water?

Which units can be used to measure length or distance? check all that apply. gram meter kilometer liter inch

Light that is polarized along the vertical direction is incident on a sheet of polarizing material. only 96% of the intensity of the light passes through the sheet and strikes a second sheet of polarizing material. no light passes through the second sheet. what angle does the transmission axis of the second sheet make with the vertical?

A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.