Molly Music is sitting in the audience at a concert. When the concert begins, the band, Truth
Hertz, warms up by singing notes and the sound plays over two speakers. Molly is sitting at
the position shown and the speakers are separated by 15.0 m.
i. Find the path difference of the sound where Molly is sitting. [3 points]
ii. What are the lowest three frequencies for which Molly hears loud sound? [4 points]

A100 kg running back runs at 5m/s into a stationary linebacker. it takes 0.5 for the running back to be completely stopped

Two students, each riding bicycles, start from the same apartment building and ride to the same building on campus, but each takes a different route. the first student rides 1100 m due east and then turns due north and travels another 1430 m before arriving at the destination. the second student heads due north for 1930 m and then turns and heads directly toward the destination.at the turning point, how far is the second student from the destination?

Atank has a shape of a cone with a radius at the top of 2 m and a height of 5 m. the tank also has a 1 m spout at the top of the tank. the tank is filled with water up to a height of 2 m. find the work needed to pump all the water out the top of the spout. (use 9.8 m/s2 for g and the fact that the density of water is 1000 kg/m3.)