This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: near the tunnel entrance? b. The train’s engineer will hear both the initial frequency and the reflected frequency. What beat frequency will the engineer hear? EF 152 Spring, 2009 Lecture 4-5 3 A 4 m thick, 10 m tall, 20 m long concrete ( ρ =2500kg/m 3 ) dam creates an 8 m deep lake. Will the dam tip over if it is not fixed at the bottom? EF 152 Spring, 2009 Lecture 4-5 4 Find the pressure and velocity in the upper pipe....
View Full Document
- Spring '08
- 4 m, 8 m, 10 m, 3 ft, 15 oz