Find the Net force acting on a bowling ball that my little boy Isaac is pushing if he pushes with a force of 23 N and the friction on the ball is 12 N.

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

Where should a carbon monoxide detector be mounted?

The current through a 10 ohm resistor is 1.2 amperes. what is the potential difference across the resistor?