The operation* is defined on the set of real numbers m*n = m+n+2mn
evaluate
3*(4*2)
5*2
-3*2

Ajet plane has a sound level of 120 db at a distance of 60 m. what is the q23. sound level at a distance of 6.0 km? (60)2 (6000)? om solution 80db db, hint: 16x assume ultrasound waves travel through the body of an animal at 1540 q24. m/s. if a 30,000 hz signal were reflected off a portion of a heart which was moving toward the source at 3 m/s, what frequency signal would return to the stationary source? solution 30.117hz

In a system, when potential energy decreases, then entropy also decreases. true false

Which bonds are found inside a water molecule