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

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=

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