At what temperature is the speed of sound in air 314.2 m/s? V = 331 +.6(T)

In a load, the load is paralel to the shaft. n a. angular n b. thrust n c radial n d. none of the above

Work out sian speed for the first 30 minutes of her journey. give your answer in km/h.

Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?