A388 hz tuning fork is resonating in a closed tube on a warm day when the speed of sound is 346 m/s. what is the length of the closed tube?

a. 0.89m
b. 1.12 m
c. 0.28m
d. 0.22m

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What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?

The two stars in a certain binary star system move in circular orbits. the first star, alpha, has an orbital speed of 36 km/s. the second star, beta, has an orbital speed of 12 km/s. the orbital period is 137 d. a) what is the mass of the star alpha? b) what is the mass of the star beta?

How many neutrons does plutonium -196 with an atomic number of 78.