Ajanitor standing on the top floor of a building wishes to determine the depth of the elevator shaft. they drop a rock from rest and hear it hit bottom after 2.42 s. (a) how far (in m) is it from where they drop the rock to the bottom of the shaft? the speed of sound at the temperature of air in the shaft is 336 m/s. (round your answer to at least three significant figures. use g = 9.80 m/s2 as needed.) m (b) if the travel time for the sound is ignored, what percent error is introduced in the determination of depth of the shaft? %

Part a)

H = 26.8 m

Part b)

error = 7.18 %

Explanation:

Part a)

As the stone is dropped from height H then time taken by it to hit the floor is given as

now the sound will come back to the observer in the time

so we will have

so we have

solve above equation for H

Part b)

If sound reflection part is ignored then in that case

so here percentage error in height calculation is given as

50 inches should be the resultant vector

graph slopes whilst gas cools, then it is flat whilst conensation to liquid happens, the coolong liquid then graphs as a slope when it solidifies graph is flat

latent heat