You blow across the open mouth of a test tube and produce the fundamental standing wave of the air column inside the test tube if the length of the air column in the test tube is 14 cm, what is the frequency of the fundamental standing wave in the air column if the test tube is half filled with water? the speed of the sound in air is 344 m/s.

a: 1000 hz
b: 980 hz
c: 460 hz
d: 1230 hz

2.22/3.33 points | previous answers tamucolphysmechl1 4.pre.002. ask your teacher my notes question part points submissions used on a frictionless air track, a blue glider with mass 0.200 kg is moving to the right with a speed of 8.00 m/s. it strikes a red glider that has mass 0.600 kg and that is initially at rest. after the collision, the blue glider is moving to the left with a speed of 2.40 m/s. (a) what are the magnitude and direction of the velocity of the red glider after the collision? magnitude 3.33 m/s correct: your answer is correct. direction correct: your answer is correct. (b) is this collision elastic?

Which fact supports the conclusion that there will be fewer farm managers in the future? a) a farmer manager’s duties vary by the type of farm. b) farm technology is replacing some administrative jobs c) farm managers often need experience but not education. d) administrative duties include budgeting and training staff.

Which describes increasing the efficiency of energy resource