Total # Posts: 5
A person who is 6 feet tall walks away from a flagpole toward the tip of the shadow of the flagpole. When the person is 32 feet from the flagpole, the tips of the person's shadow and the shadow cast by the flagpole coincide at a point 4 feet in front of the person.
February 10, 2016
One kg of water is moving 2 m/s as it goes over a dam. At the base of the dam, 13m below, how fast is that water going if air friction can be neglected? (ans: 16.25m/s) B: if the water does not go straight over the dam, but instead goes through the hydroelectric generator in ...
March 5, 2008