Two equal masses, A and B, are attached to separate identical vertical springs. Mass A is pulled
Question:
Two equal masses, A and B, are attached to separate identical vertical springs. Mass A is pulled so its spring stretches 24.1 cm and mass B is pulled so its spring stretches only 13.6 cm. The masses are released simultaneously.
Part 1)
Which mass reaches the equilibrium position first?
at a constant speed of 38.0 m/s directly towards a stationary bird. The bat emits an ultrasonic sound wave of frequency bat. The bird detects the frequency as bird. Take the speed of sound in air to be 343 m/s.
Calculate the ratio
bird/bat =
Part 3)
The sound wave then reflects off the bird and this reflection is heard by the bat as reflected. Calculate the ratio reflected/bat=
Vector Mechanics for Engineers Statics and Dynamics
ISBN: 978-0073212227
8th Edition
Authors: Ferdinand Beer, E. Russell Johnston, Jr., Elliot Eisenberg, William Clausen, David Mazurek, Phillip Cornwell