74.3 dB. What would be the sound level produced by a chorus of 17 such singers (all singing at the same intensity at approximately the same distance as the original singer)? Answer in units of dB.

Awalk up the phase change graph worksheet

Both independent and dependent clauses

Suppose that three astronomical objects, 1, 2, and 3 are observed to lie on a line, and the distance from object 1 to object 3 is d. object 1 has four times the mass of object 3, and seven times the mass of object 2. find the distance between objects 1 and 2 for which the net force on object 2 is zero.