What happens to the velocity of a sound wave in air if the temperature of the air increases? A.
velocity increases
B. velocity does not change
c. velocity decreases
D. velocity drops to zero

the answer would be 32*f

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

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